What's the one thing you need to do to stay married?A propulsive domestic thriller with an urgent message for fans of Lisa Jewell and Jessica Knoll that asks, What's the one thing you need to do to stay married? and blows apart the uncomfortable answers.

Elle never dreamed she'd end up with a man like Dom. He's handsome, successful, the perfect father to their baby girl.

But Elle doesn't feel the joy she knows she should. She's struggling with being a mum, failing at work, even her post-baby body doesn't feel like her own. Not that Dom cares. He worships Elle and craves intimacy as deeply as troubled Elle wants to shy away from it.

Elle starts relying on red wine and the attention of new colleague Gabriel to get through her day. But the morning after a team away day, a bewildered and hungover Elle wakes up with a lifeless body in her bed. She knows devoted Dom is the only person who'll give her any chance of getting out of there a free woman.

Elle would never have ended up in such danger if she'd followed the Marriage Rule, the one thing she's been told a wife needs to do, even if it breaks her...