The detective Alexey Kisanov’s older son, Roman, comes to his friend’s country house. In the window of the neighboring manor, he sees a girl… And soon it turns out that Milla is being held against her will by some “sponsor,” who got hold of her through deception and pulled her into his networks. She asks Roman for help. Remembering the methods of his detective father, Roman tries to plan an escape in detail and with technical thoroughness, anticipating every possible pitfall. However, on the night of the escape, Milla disappears. Only a puddle of blood remains on the floor… What happened here? Where did the girl go? Is she alive?!
At the same time, while examining Milla’s room, Roman accidentally left his own traces and fingerprints there. He understands: whatever happens to her, suspicion will now fall on him. He goes into hiding, hoping to figure out what happened and find the girl he managed to fall in love with. But without Kisa’s help, he can’t manage…