A factory crew of seven young people is taking responsibility of a young criminal.

An ancient blade with diamonds is stolen from the museum where Alexei Gurov works as a restorer. Soon an old icon is stolen from Gurov's apartment. Head of the crime investigation is the police colonel Georgy Arefyev. Everyone knows that Gurov is obsessed with collecting rarities, so suspicion falls heavy on him.

A Noisy Day is a comedy-drama movie that revolves around the lives of a group of individuals who experience a series of humorous events and unexpected situations in a single day. Amidst the chaos, they learn valuable lessons about love, friendship, and family relationships.

The play tells about the children, their school affairs, friendship, and relationships with adults. But the most important thing here is the problem of trust in a growing person.