He built an empire out of a garage and a grudge. He never planned on losing his heart to the nanny.

Dashiell Merrow doesn't do second chances — not in business, and not in love. Two years after losing his wife, the billionaire founder of Merrow Dynamics runs his household exactly like he runs his company: total control, zero exceptions, no one close enough to leave a mark. His six-year-old daughter has already buried six nannies' names. He intends to keep it that way.

Then Briar Lindqvist walks through his door.

She's an art-school dropout with a scholarship she can't afford to miss and a mother she can't afford to lose — and she needs this job more than she needs her pride. She signs the contract without blinking at the clause that ends her employment the moment anything personal starts between her and her employer. She has no plans to test it.

She doesn't stay invisible for long.

Within weeks, Dashiell notices the way she talks to his daughter like a person instead of a problem — and hates how much he notices. A storm that traps them together. A gala he can't stop watching her through. A 3 a.m. fever that leaves them both raw and honest. One kiss neither of them planned, and the wall he spent two years building comes down in a single night.

They swear to keep it secret. His board is circling ahead of a make-or-break IPO. Her entire future rides on a paycheck she can't lose. And a board member with old money and older ambitions has plans of her own for Dashiell's hand — plans that don't leave room for a nanny who was never supposed to matter.

When the secret gets out at the worst possible moment, Dashiell does the one thing guaranteed to destroy everything: he chooses the company, and lets Briar walk away to protect her — without asking if that's what she wants.

It will take losing her completely for him to understand that control was never the same thing as safety, and that the wall he built after his wife's death was never protecting him from grief. It was protecting him from ever loving anyone enough to lose them again.

Now he has to prove it — before the only family he has left decides he's already lost them for good.

A billionaire boss. A forbidden nanny. A love neither of them can afford — and can't survive without.

Perfect for fans of grumpy billionaire heroes, secret office romance, single-dad slow burns, and grovel-worthy redemption arcs. Closed-door.