The whole city is in panic - women are strangely disappearing from an ordinary, unremarkable factory. Completely different in age, appearance, clothing style, they were united by only one thing - the profession of sewing machine operators. All of them, leaving work in the evening, never made it home. But what happened to them? And why for six months were neither the bodies of the missing nor absolutely any traces of the disappearance found? The police are at a dead end, and private detective Tatyana Ivanova will have to shed light on the mysterious incidents. The only way to help the unfortunate and prevent further similar crimes is to catch the criminal with live bait. Apparently, Detective Ivanova will need to take on the role of the victim, and for this he needs to learn... to sew.