The members of the Zurich group Mass & Fieber chart new territories: In an ambience of domestic music-making, they perform and sing, while at the same time pursuing a legal case – their common past. Musicians and actors Buddy Casino, Martin Gantenbein, Fabienne Hadorn, Brigitte Helbling, Niklaus Helbling, Malika Khatir, Markus Schönholzer, Nicole Steiner and Samuel Streiff testify to their past, dig up songs from their repertoire and search for the truth about that one play they have written and rehearsed but never performed: «Wild Detectives». What happened? Who was plaintiff for the arts or for action back then? Who for violence and who for love? Who brought the drops that turned the evening upside down? And what really happened at the party that brought them all to the brink of the abyss?