Aaro falls in love with Maura, met in a bar at Helsinki. The woman didn't give her real identity and keep secret about her private life. They travel with his ship. During a stop, Maura changes her behiavior
Linda, Maura's sister, falls in love with Erkka, his neighbour who seems interested in her. Erkka receives a threat message, telling him to let Linda and Ronja alone
Maura convinces Aaro for a long travel by ship. When Maura discovers that her sister Linda and Erkka are on the same island, she decides to wait the night to threat Erkka and reveal his secret.
Erkka push Maura to watch pictures he took 13 years ago in order to make her silent. Maura, ashamed steal Aaro's ship to commit suicide. Aaro is investigating about Erkka and get important information. Then he tries to find Maura to save her.