The Bullet from Van Gogh

Colonel Lev Gurov visits the impressionist gallery at the invitation of the famous art expert Oleg Svyatsky. He promised to show the detective a unique exhibit — a revolver that allegedly shot Van Gogh. If this is true, a real sensation awaits the world! While waiting for the meeting, Gurov hears a shot from the depths of the gallery. He rushes to Svyatsky's office and finds him shot at point-blank range. The criminal manages to slip out of the office unnoticed, but he doesn't have time to leave the building: the triggered security system locks the doors and windows. Along with the colonel, six other visitors are trapped. One of them is a cold-blooded killer…