De Cock and Vledder investigate the robbery of an armored truck which leads to several murders.

Yuri Petrovian, a Russian ballet dancer, decides to flee communist Russia and gets help from dancer Sabine Zorelli. Unintentionally, the other characters living in and around the house of Commander Snijders also become involved in the dancing duo's plans. This is the beginning of many difficulties and mistaken identities. With the help of his girlfriend Nanni Snijders, the commander's daughter, Boebi Bus tries to overcome these difficulties.