My husband was the last person to see the girl in room 12. But did he kill her? As I cook risotto for my family, I glance at the kitchen clock. My husband Max is late home again. He's been so distracted lately - snapping at our little daughter Poppy, burying himself in work, arriving home in the early hours of the morning. I feel so alone. Why won't Max tell me what's on his mind? Poppy chatters about her day but my attention is caught by a news story. A young woman called Alice has been found dead in the River Walk Hotel, just minutes from our house. I switch the television off, my mind spinning. Alice looks familiar but I can't work out why. After I put my daughter to bed, I head to our bedroom. It's usually a calm tranquil place but Max's clothes from yesterday lie crumpled on a chair. I pick up his expensive navy suit and try to smooth out the creases. But when I place my hand in the pocket to remove the loose change my fingers clasp something, smooth and solid. A key card. And the only words on it are The River Walk Hotel... I know my husband has made a mistake. But is it an affair? Or is his secret something even darker? A completely gripping thriller from bestselling author Kathryn Croft that will leave you breathless as you turn the pages.