Alone in the mountains of Switzerland, Anne discovers that her isolated chalet is on surveillance and has been bugged. Caught up by her former life as an intelligence secret agent and an affair with her handler, Anne can only count on herself to get out alive.

Berlin playwright Lisa follows her husband Martin to Switzerland, where he manages a private school. However, when her twin brother Sven’s leukaemia begins to wreak havoc on his health, she decides she must return to her roots, which has significant consequences for her relationship.