Wealthy art collector Calvin Norris, while visiting an artist friend, sees a woman modeling for a sculptor in the studio across the alley. Norris is shocked. The woman looks exactly like the subject of a Renoir painting he owns. He tries to get to the woman but she is gone before he can get to the sculptor's studio. Norris hires Mannix and Intertect to track the woman down. Norris is more interested in her than the possibility his painting is a forgery. Mannix, relying more on legwork than Intertect's computers, finds the woman, who, it turns out is really an artist and only models occasionally. It also turns out that Lang, the sculptor, is prone to violence. Mannix is convinced Linda is in danger and he's determined to crack the conspiracy.