Private detective Tatyana Ivanova is investigating the disappearance of her fiancé on behalf of her client Irina. Surely the handsome Michel simply decided to leave his beloved, as far as marriage was concerned... But everything turned out to be much more tragic: Irina was killed, and soon the corpse of her fiancé was found. Tatyana finds out that Mikhail “served” in an agency providing intimate services to rich ladies. Perhaps the motive for the crime should be looked for in his work. Tanya works on this version and suddenly faces another murder, the victim of which is not just anyone, but the daughter of an oil magnate...