It is not a common assignment for the Berlin lawyer, womanizer and life artist Joachim Vernau: He should look for a man in Havana, who disappeared without a trace 30 years ago. Katherina Gebhardt is the sister of the disappeared. Her brother Martin allegedly "emigrated" to the GDR in 1980, but never arrived there. Instead, every year they reach clues that Martin is still alive, sometimes in Cuba, sometimes in the USA. Now she has to sell the house, their common heritage, and asks Vernau to contact the man in Havana.