New York Private Detective Duncan; Mac Corporation; McLean was blind, but he keenly developed all other senses. He continued his work with the assistance of his loyal guide dog Friday, butler Alistair, and assistant Marty. Retired actress Norma Laurie, an old friend of hers, came to Mike for advice. Her wayward 17 year old stepdaughter Barbara is herself a promising actress and is fascinated by her much older protagonist in a small drama, Lothario Paul Ghent. Paul used to be Norma's lover, and he convinced Barbara that Norma actually wanted Paul and married her father Stephen just for his money. At Mac's urging, Norma tries to reason with Paul, but Paul insists that he loves Barbara and laughs at her. Barbara also shrugged off her and agreed to have dinner with Paul that night at his apartment. Norma's husband, Stephen Laurie, was a scientist who left that night to test a secret invention that he had been working for government and war. Worried about Barbara, she excused herself from accompanying Stephen to the apartment. When Barbara arrived, she found Paul's body and believed that Norma had killed him, although Norma insisted that Paul was dead when she arrived. Barbara threatened to call the police unless she left Stephen. Fearing that the scandal would harm him, Norma agreed. Then Norma turned to Mike, who took Friday and Marty to Paul's apartment, only to find that the body and the carpet underneath were missing. A man came to change the carpet while Mac hid in the closet, overhearing Norma's phone number ""; Gabriel "; to" "Vera" Mike accidentally exposed himself, but with Friday's help, Gabriel overpowered him, who refused to speak. Mike asked Marty to hide him and keep him secret. Norma accidentally returned to her rural home, which prevented a spy group, including her butler Hansen, from breaking into Stephen's safe and stealing his plan. They killed Gerente, who was also an agent, and hid the body.". Mac takes Friday to Norma's house and pretends to be her surly "surly"; Uncle Mike; People who come to visit. His blindness dispelled any doubt Hansen had about him. Shortly after, Barbara began a ";" emergency rehearsal ";, Her director, Cheli Scott, called to ask her to leave the house and invited her to spend the night at Laurie's. Neither Barbara nor Norma knew that Cherie was the head of the spy. Cheli ordered Paul to be killed because his affection for Barbara began to limit his effectiveness, and she immediately suspected that Mac wasn't as he seemed. Gabriel's wife, Vera, is the maid of the Lauries and is part of the plot. When Gabriel didn't come home, Villa became hysterical with worry. Mike secretly asks Vera to meet him in the greenhouse, using her concern for Gabriel as a bait. However, others observed her and were killed by Hansen before she reached Mike. The spy cut off the phone line to the house so Mac and Norma couldn't call the police, and Cheli put Mac under guard. Using his blindness as a distraction, Mac subdued his guard and released him from the window on Friday, And indicate that "; Go home and find Marty Stephen. When Stephen returns home, Cherry threatens his family if he doesn't give her the last step in creating his invention, which isn't in the safe. Barbara finally realizes how much Norma cares about her. Mac tries to delay, but he's locked in the cellar. When Hansen goes to kill him, Mike breaks the light bulb, and his completely dark advantage helps him defeat the spy. Marty and Friday take The police are back. When a lookout spotted him on Friday, Mike subdued him and was rescued by another lookout before Friday. After the spy was arrested, Stephen and Norma traveled to Washington, D.C., where Barbara stayed to take care of her new lover; Uncle Mike;
