From the Sunday Times and Richard and Judy Book Club author of THE HOLIDAY, comes your unmissable summer thriller.

She says he's perfect.

I know he's lying . . .

Ed finally meets his daughter's boyfriend for the first time. Smart, successful and handsome, Ryan appears to be a real catch. Then Abbie announces their plan to get married.

There's just one problem. Ed thinks there's something off about Ryan. Something hidden in the shadows behind his eyes. And it seems that only he can see it.

Terrified that his daughter is about to marry a man who is not as he appears, Ed sets out to uncover Ryan's secrets. But the more he digs, the more he alienates Abbie and his wife Claire, who are convinced that Ryan is The One. And Ed has reasons of his own for wanting to keep his daughter safe. Reasons that may be affecting his judgement.

As he becomes increasingly obsessed with his future son-in-law, Ed's own life begins to go into freefall. With the wedding date approaching fast, can he finally find the evidence to prove that Ryan has been lying to them, before it's too late?