‘You don’t really know your husband,’ my sister-in-law whispers, and a chill runs down my spine. ‘Can you really trust the man you married?’

Gary and I have always been happy. Our fridge is covered in the love notes I leave him every morning, we always start the day on the doorstep with a goodbye kiss, and I make sure we never, ever fight. But since Gary’s sister Lisa moved in, things have been different…

The day Lisa arrived at the school where I work, asking for help, I knew we had to welcome her into our home. Gary hasn’t spoken to his parents in years, and his childhood was far from perfect. But now every time Lisa enters a room, I watch him sneak out the door. He’s no longer home for dinners, spending longer hours at the office. It’s me who’s chatting to Lisa all night as we cook. Learning more and more about the family Gary told me nothing about.

And then I spot them through the front window on my way home from work. Arguing. Shouting. Gary thrusts an envelope into Lisa’s hand. He looks nothing like the man I love. Lisa won’t tell me what’s going on, but she whispers to me that I shouldn’t trust the man I married.

When I met Gary, I thought I was finally safe. But Lisa’s arrival in Victoria Avenue is forcing my husband’s secrets to surface. She thinks I’m innocent, that my own past is picture-perfect, but she has no idea how far I’ll go to protect the ones I love.

A rollercoaster psychological thriller full of twists and turns that will have you gasping for breath. Perfect for fans of Lisa Jewell, Shari Lapena and The Housemaid.