Police captain Alyoshin is investigating a case related to the theft of opium at a chemical factory warehouse and everything suggests that the offender must be sought among the employees. One of them is familiar to Alyoshin in another matter but despite being confident in his honesty, Alyoshin suspects something is wrong.

Aleksandr Zbruevas kapitan militsii Aleksandr Alyoshyn
Igor Gorbachyovas polkovnik militsii Nikolay Nikolayev
Pyotr Gorinas major militsii Semyon Shondysh
Armen Dzhigarkhanyanas Rostislav Frolov
Aleksey Kozhevnikovas kapitan militsii Aleksey Andreev
Evgeniya Uralovaas Svetlana Frolova
Nikolai Rybnikovas Viktor Vasiltsev
Svetlana Nemolyaevaas Larisa Vasiltseva
Svetlana Korkoshkoas Olga - sotrudnitsa khimzavoda
Pantelejmon Krymovas dyadya Grisha
Aleksandr Chirov