Klaus murders women. After killing another girl, Klaus is spotted by his friend Kersten as he leaves his latest victim's house. Kersten gives him a ride and Klaus begins to plot the man's death. He's a witness, after all. Nobody else can say Klaus was there except Kersten. They decide to head to a party. Klaus' unhappy wife is there. So are a bunch of other people. Killing Kersten will be difficult. Then they all play a game called... Murder Party!

• Magali Noël
• Harry Meyen
• Götz George
• Robert Graf
• Hanne Wieder
• Margot Hielscher
• Wolfgang Kieling
• Balduin Baas