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The Safe House
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A BOOK BY KEN TSUKAMOTO

The house is chosen before it is touched.

Burglary in Japan is a rounding error. It was never honesty. It was machinery: loud gravel, a second lock, a lit window, a neighbor's good-morning. The Safe House shows you every piece, and how almost all of it works on an American house.

Seven cheap, quiet layers you can add to an American house, one evening at a time.
No subscription, no app, no gadget aisle. Most of it costs pocket money and never bills again.
Every number sourced. Japan's police data, the burglar surveys, the standards, graded at the back.
$47$79early-bird price
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Instant PDF download · 482 pages · 30-day refund, no questions asked
Cover of The Safe House, designed as a bag of Japanese crime-prevention gravel with a window showing the stones
1 in 3,300

Japanese households have a break-in in a typical year. In America it is about ten times that, per household.

68.5%

of intruders surveyed in Japan give up on a door or window within five minutes.

¥500

for a bag of crime-prevention gravel: a security system made of noise, with no monthly fee.

Sources: Japan's National Police Agency, 2024; Japan Urban Security Research Institute survey of convicted intruders; FBI, Crime in the United States 2024. All graded in the book.

You lock the door every night. Have you ever looked at your house the way they do?

THE CAMERA

I pay for it monthly. Its whole contribution to my house so far is a library of footage of nothing.

THE YARD SIGN

It came with the house. It advertises an alarm company I have never been a customer of.

THE SLIDING DOOR

Secured for a decade, if I'm honest, by optimism.

None of that is foolish. It's what America sells. It just starts too late: after the ninety seconds in which someone across the street decides whether your house is worth trying.

THE FIVE MINUTES

Burglary is an audition. Five minutes is about the length of it.

Japan's crime-prevention researchers asked the people who had actually done it how long they would keep working at a door or window before giving up. The answer became a national standard: the CP mark goes only on locks, doors, glass and shutters that hold out for five minutes of testing.

And when they were asked why they had walked away from a house, the most common answer wasn't a lock at all. It was: someone spoke to me.

5:00
Give up in under two minutes17.1%
Give up between two and five51.4%
Within five minutes, in all68.5%
Japan Urban Security Research Institute, survey of convicted intruders, as published by prefectural police.
TRY IT TONIGHT · THE NINETY-SECOND LOOK

Stand across the street. Then answer seven questions.

One question for each of the book's seven layers. Nothing is sent anywhere: it's just your house, seen from the outside for once.

Layer 1 · THE STREET VIEWFrom across the street, can you clearly see your front door?
Layer 2 · THE APPROACHIs the path to your door open to view, with no corner to wait in?
Layer 3 · THE DOORDoes every outside door have a second lock?
Layer 4 · THE WINDOWSDoes every ground-floor window have a second lock or a stop?
Layer 5 · THE LIGHTAfter dark, does the house look lived-in: a lamp on a timer, a light at the door?
Layer 6 · THE SOUNDWould footsteps along your path or side yard make a noise someone would hear?
Layer 7 · THE NEIGHBORSDoes a neighbor know your name, and would they notice a stranger at your door?
YOUR HOUSE, FROM THE STREET
0of 7 layers in place

Answer as you go. Your tally fills in here.

The book walks each layer as one evening, with a printable plan. None of it is a guarantee: it's odds, minutes and witnesses.
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WHAT IT COSTS

Same American house. Six years. Two ways.

Priced from the ledgers in the book. On the left, safety bought as a monthly feeling. On the right, the layers I put in instead.

THE SUBSCRIPTION ROUTE
What I was quoted, and what I already pay
Professional monitoring, as quoted: $40 a month for 72 months$2,880
Camera-doorbell plan: $5 a month for 72 months$360
The alarm sign in the yard: came with the house$0
SIX-YEAR TOTAL$3,240
And it bills again next month.
THE MACHINERY ROUTE
The book's layers, on the same house
A second lock, a solid door slab, a closer on the garage door$380
Crushed stone on the blind side, a gate latch, two barberries$230
Window latches, vent stops, a bar for the slider$100
Security film on three panes, fitted$400
Three timers, bulbs, a dusk sensor, three sensor lights$150
House numbers you can read from the street$25
A display by the door; notes to eleven neighbors$65
Electricity for all of it, six years$120
SIX-YEAR TOTAL$1,470
Most of it once. None of it monthly.

Prices are the book's own ledgers, rounded; yours will differ. Neither column is a guarantee: what either buys is odds, minutes and witnesses. The monitored alarm has real merits too, and Chapter 53 says exactly what they are.

The whole system costs less than one month of the quote. The book costs less than that.

Get the book$47
WHAT YOU GET

Everything in one PDF, yours to keep.

Read it on a tablet or computer, or print the parts you'll use. Here are four real pages, exactly as you'll read them.

The book: 482 pages, 86 chapters in 14 parts, set in large type for easy reading.
THE FIVE MINUTES: at the end of every chapter: one thing to check or change tonight, and what it buys.
Seven Evenings, Seven Layers: a printable plan: one layer of the house per evening.
The House Audit, From the Outside: a printable walk-around, one page per station, starting across the street.
The Source Ledger: every number in the book, graded A, B or C for how much weight it can bear.
The Myth Register: the explanations everyone repeats, checked against what's actually true.
Chapter 1, A Country Where Burglary Barely Exists
CHAPTER 1A Country Where Burglary Barely Exists
Part II, The Audition
PART IIThe Audition
Chapter 73, The Choosing Question
CHAPTER 73The Choosing Question
Appendix E, The House Audit, From the Outside
APPENDIX EThe House Audit, From the Outside
See all fourteen parts
IThe Rounding Error. The numbers, sourced. The honesty story, retired.
IIThe Audition. The five minutes, and the surveys of the people who did it.
IIIThe Ground. Gravel that shouts, the approach as a corridor, sightlines.
IVThe Threshold. One Door Two Locks, and the CP mark: a standard, not a brand.
VThe Windows. Where the audition is usually won.
VIThe Light and the Dark. The lived-in look; the timer is older than the app.
VIIThe Intercom. The door answered without opening it.
VIIIThe Street That Answers. The police box, the officer who visits, the good-morning.
IXWhere America Is Right. Twenty concessions in one table.
XThe Frauds at the Door. The callers who target the old, and the call-back rule.
XIThe Empty House. The house that tells no one it's empty.
XIIThe Quiet Industry. The five-hundred-yen aisle versus the subscription.
XIIIThe System. The Choosing Question, the audit, seven evenings.
XIVThe Two Houses at Night. Her house at ten p.m., in full.
Ken Tsukamoto at his desk
A NOTE FROM KEN

Everyone here calls me Ken. My mother still calls me Kenichi. She is in her seventies and lives alone at the edge of a field, in the house I grew up in, and she has never once been burgled. Nor has anyone on her street, in living memory.

For years I accepted the explanation everyone offers: Japanese honesty. Then I looked at what was actually under her windows, on her path, at her door and up her street, and found machinery at every layer. Most of it cheap, none of it subscribed, all of it boring.

I am not the good example. I pay monthly for a camera, kept a sign for an alarm I never owned, and trusted a sliding door to optimism for ten years. This book is written from inside the American house, not from above it.

Ken Tsukamoto
WHAT IT IS NOT

Deterrence only. It ends at the property line.

Not a fight

No weapons, no confrontation, and nothing about defeating locks, cameras or alarms.

Not a guarantee

Its currencies are odds, minutes and witnesses. Anyone selling certainty is selling something else.

Not a fear book

No crime stories and no worst nights. A well-run house is calm, and so is the writing about it.

Past the door, the whole of the book's advice is one sentence: leave if you can, and call the emergency number where you live.

30DAYS

Read it for a month. If it isn't for you, it costs nothing.

Email twohousesbyken@gmail.com within 30 days and I'll refund you. No form, no questions.

QUESTIONS

What people ask before they buy.

Is this a printed book?

No. It's a digital book: a PDF, 482 pages, set at 6 by 9 inches in large type. It reads like a printed book on a tablet, and you can print any or all of it. Nothing arrives in the post.

Is this a security manual?

No, and it's strict about the difference. It's a deterrence book: it ends at the property line. No weapons, no confrontation, nothing about defeating locks or alarms, and one sentence about what happens past the door: leave if you can, and call the emergency number where you live.

Will it work if I rent, or live in an apartment?

Most of it, yes. Chapter 78 goes through what still applies when you can't drill, dig or rewire: the light, the sound, the neighbors, and the habits that cost nothing.

Can I read it on a Kindle?

Yes. Go to amazon.com/sendtokindle, sign in, and drag the file onto the page. On a small, basic Kindle the pages look small; it's far better on an iPad, a computer, or paper.

Will the price go up?

Yes. $47 is the early-bird price until 11:59 p.m. Eastern on October 31. On November 1 it moves to $79.

What if it isn't for me?

Email twohousesbyken@gmail.com within 30 days and I'll refund you. No form, no questions.

The first page of Chapter 1
NOT READY YET?

Read Chapter 1 tonight, free.

A Country Where Burglary Barely Exists: the statistic, my mother's gravel, and the machinery underneath. Enter your email and it opens right away.

The Safe House cover

Ninety seconds, from across the street.

If you don't know what they would see, that's the whole reason this book exists. Every layer that takes your house out of the audition is in here, priced in pocket money.

Early-bird ends in
$47$79early-bird price
Get the book$47
Instant PDF download · 482 pages · 30-day refund, no questions asked
thesafehousebook.comtwohousesbyken@gmail.com© 2026 Ken Tsukamoto
The book describes deterrence machinery: design, products, standards, habits and neighborhoods. Nothing in it is a guarantee of safety, and it is not legal or security-professional advice. If an intrusion has happened or is happening, leave if you can and call the emergency number where you live.