Miriam, Doris, Inès and Christiane have been closely connected since their school days at the "Sophianum". But the girlfriends have much more in common - namely a secret. The idyllic life in Zollberg is thrown into jeopardy when a duo of detectives arrive from Vienna and investigate a death everyone thought was long since solved. This not only makes Miriam ponder in her function as a public prosecutor. As a result of the investigation, the four women are confronted with their very personal fates and secrets, and their bond is put to the test