Never Saw It Coming (en Inglés) - Monroe K Noah

THE BLURB
Never Saw It Coming: The Perfect Life Was the Perfect Lie

He had everything.
A beautiful home. A devoted wife. Two children who made every morning worth waking up for. And a best friend who had stood beside him since university - through every milestone, every celebration, every ordinary Sunday dinner.
Daniel Mercer was, by every measure, a lucky man.
Then came the attic.
A rainy afternoon. A home renovation. A shoebox pushed behind an insulation panel that nobody was ever supposed to find. And inside it - a letter. Handwritten. Eleven years old. Addressed to his wife in handwriting Daniel recognised before his mind had fully caught up with what his hands were holding.
His best friend's handwriting.
What Daniel reads in that letter will take everything he thought he knew about his marriage, his children, his oldest friendship - and reduce it to rubble in the space of two pages.
But the letter is only the beginning.
Because beneath the lie his wife told is a conspiracy so cold, so calculated, and so long-running that Daniel will begin to question everything - not just who Claire really is, but who Marcus Webb has been all along. A man who called him brother. A man who sat at his table, drank his wine, held his children - and knew. Every single time.
Never Saw It Coming is a devastating, page-turning novel about the betrayal that comes not from enemies but from the people whose voices you know better than your own heartbeat. It is about a man who is broken completely - and what he chooses to do with the pieces.
It is about what it really means to be a father.
It is about what it really means to stay.
It is about the moment you realise the life you were fighting to save was never the life you actually needed.
You will not see the ending coming.
You will not forget it when it does.