Lovers Alyona and Zakhar are preparing for the wedding, but she is tormented by doubts. The groom arranges a bachelor party for friends Igor, Yura and Max.

Friends are looking for the missing Zakhar, who was abandoned by Alyona. Zakhar wakes up in a hotel room with Alphonse Zhenya.

Zhenya undertakes to help Zakhar return Alyona. Yura, Igor and Max prepare a surprise for Zakhar and get into the police.