Roos Hartman is a recently divorced, dedicated doctor who moves into a massive, imposing seaside apartment complex with her young son to take on the role of resident physician for the building's tenants. Her hope for a quiet, structured new beginning is instantly shattered when a fellow resident is brutally and mysteriously murdered inside the complex. As the police launch an investigation, suspicion quickly falls onto Eric Coenen, a deeply charismatic but enigmatic copywriter who lives right down the hall. Drawn to his intense, mysterious energy despite the mounting warnings from law enforcement and her close friends, Roos plunges headfirst into a passionate, highly charged romantic affair with him. Desperate to believe in his innocence, she begins to conduct her own private investigation into the murder to clear his name—only to unearth a trail of dark, unsettling secrets about Eric’s true involvement that forces her to question if she has welcomed a cold-blooded killer into her bed.