Exercise with Three Unknowns

The plot follows criminal investigation officers Major Dorokhov and Lieutenant Matushkin as they tackle the case of a factory cashier's robbery. The criminals manage to escape after the attack, prompting the officers to interview witnesses at the scene. However, the witnesses struggle to provide coherent details about the attackers or the getaway vehicle, adding layers of intrigue to the investigation.

Gathering clues and piecing together the fragmented accounts of the witnesses, the officers must navigate the complexities of the case. The tension builds as they attempt to uncover the truth behind the crime and identify the unknown assailants. This film offers a glimpse into the crime and mystery narratives of its era, showcasing the storytelling style of Soviet television movies.