When Emma’s estranged sister, Lily, arrives unannounced on her doorstep, she feels obligated to let her stay. After all, they’re family, and Lily claims she’s trying to rebuild her life. At first, Lily is the perfect guest—helpful, kind, and eager to bond with Emma’s young daughter, Sophie. But soon, small things begin to go missing, whispered lies spread cracks in Emma’s marriage, and Sophie starts acting out in strange ways.
Emma suspects Lily is hiding something, but her husband insists she’s overreacting. As Emma digs into her sister’s mysterious past, she uncovers a series of dark secrets that make her question everything she thought she knew about Lily—and about herself.
As the tension escalates and the danger grows closer, Emma must make an impossible choice: protect her family or confront the terrifying truth about the hidden guest in her home.
