For fans of Gone Girl and The Girl on the Train, a gripping short story from the New York Times bestselling author of Woman with a Secret. Don't say I didn't warn you... When a kindly stranger does Chloe a good deed, she decides she must repay him. But in tracing him, she meets a sympathetic woman named Nadine, who warns Chloe to stay away from the man at all costs. "Give him nothing, tell him nothing, don't trust him," she says. "Avoid him like the plague." Chloe knows the sensible thing to do: walk away. But her curiosity gets the best of her. What is the truth about the good Samaritan? How dangerous could he be? And can Chloe find the answers without putting herself and her daughter in harm's way?