The night before her wedding, Claire Bennett finds out her fiancé has been sleeping with her best friend. Two weeks later she's subletting a stranger's apartment on Perry Street, with three rules on the listing: water the fig, don't open the hall closet, don't answer the door after midnight.

Then the letters start. Cream envelopes, beautiful handwriting, all of them for the man who lives there. Claire writes back.

And one rainy night at 1am, a key turns in the lock. He says this is his apartment. He's nothing like the letters said he would be. And he's about to become the best and worst thing that ever happened to her.