After a drastic experience, Nina takes some time out on an island in northern Germany to be away from work and her husband Patrick. She meets the charming and mysterious Daniel, who immediately captivates her. At first she fights her desire, but soon the two become increasingly entangled in a web of eroticism, lust and secrets.

A year after her best friend's suicide, 19-year-old Nele has retreated and is working with aquarium fish. When new colleague Ella tries to reach out to her and they rescue a rare seahorse from a shady seller, Nele is forced to confront her feelings.