When the well-known director of a women’s retreat center goes lacking, Espoo Police Detective Maria Kallio is called to research. As the missing woman’s relatives and buddies swiftly become the pool of suspects, Maria must soften her challenging interrogation style to uncover the information she needs to solve the criminal offense. In the meantime, a killer Maria put in prison escapes and sets out to take revenge. As the lacking people case—and Maria’s personal lifestyle—become increasingly challenging, the Espoo Police work to track down the escaped killer before it’s too late.