Moy nezhno lyubimyy detektiv (1986)

Two employees of a private detective agency, Miss Holmes and Miss Watson, applying the deductive method, successfully solve seemingly hopeless cases. Inspectors Lestrade and Biggs of Scotland Yard decide to get rid of the competition, but nothing goes as planned. When the lady detectives see through every intrigue, the police officers find a new way to stop them - love.