An eccentric musical about what awaits a young honest man who does not want to enjoy the benefits of a "profitable place", despite the fact that he has a young wife, a very persistent mother-in-law and an influential uncle.

After leaving prison, 40 years old Lyashenko robbed a man at the station and, along with the money, stole a passport. Realizing that he had robbed his childhood friend, Lyashenko decided to return the stolen goods. A night conversation between the tramp Leonid Lyashenko and the successful official.

Tatyana Prokofievna is an ageing woman with a diva’s behavior, but her life is uneventful, ordinary and dull. To escape the everyday slumber she seeks companionship of young men. She provides shelter and becomes involved in their problems. Her ex-boyfriend has married a younger woman. Tatyana is forced to keep her loneliness hidden because of her role as hostess.

Criminal investigation is investigating the case of robbery of the factory cashier. At the checkpoint of the factory of precision mechanics and optics, two criminals attack the cashier. Criminals manage to escape by the car, waiting for them around the corner. At the scene of the crime, criminal investigation officers arrive Major Dorokhov and Lieutenant Matushkin. They interview witnesses, but they did not remember properly any attackers or machine numbers, but noticed that one prevented the other from firing.

By chance, two middle-aged people met - the telephone operator of the hotel Lina and the chief engineer of the construction department Kirillov, who had arrived on official business from Leningrad in one of the provincial cities of the country. Behind everyone has setbacks in family life. A sincere feeling that brought two lonely people closer together helped to see those around them in a new way. They are already over forty. Both are lonely. Having met by chance and fell in love with each other, they never became happy.

A girl named Mary Morsten comes to Sherlock Holmes, who asks him and the doctor to help solve the annual receipt of one pearl by her parcel and in the search for her father, who disappeared many years ago. Holmes and Watson do not refuse her help and find out that Miss Mary is the heiress of a huge fortune — the treasures of Agra, which are also claimed by the sons of Major Sholto and Jonathan Small — an escaped convict with a wooden prosthesis instead of a leg, whom the elder Morsten and Sholto deceived (while Sholto also deceived Morsten).