A man wakes bloodied and disoriented from a car crash. He staggers to the road and flags down help from a passing motorist, but the driver dies suddenly after swerving off the road. After calling for help on his cell phone, he realizes he does not know where he is or what his name is. Checking his wallet, he learns his name is Liam Hartwell. While heading back into town, Liam stops at a roadside diner, where he finds everyone dead. At his house, news reports speculate a virus may be responsible, and in response he covers his nose and mouth with cloth for protection. When he notices a nearby farmer, he attempts to warn the man to leave the area. The farmer approaches Liam and suddenly drops dead. When Liam notices animals also die when he approaches, he realizes he is the cause of the unexplained deaths, not a virus. Radius 2017 full Movie
A woman also suffering from amnesia comes looking for Liam at his house, revealing that she was with him during the car accident. He is surprised when she can approach him without dying, and he agrees to talk with her. Neither knows why they were traveling together, nor what caused the crash. Liam does not mention his theory about the deaths but presses the woman, dubbed Jane Doe, for details about whether anything weird has happened to her. When she says that hospital tests showed nothing out of the ordinary, they investigate the site of the crash. They find a charred circle, and Liam finally explains his theory. Jane reacts fearfully, insisting that he stay away from her. A passing cop sees their altercation and questions Liam. She drops dead as soon as Jane walks off.
Using a goat, Liam proves to Jane that any living creature who approaches him dies unless Jane is within 50 feet (15 m). Liam at first wants to contact the authorities, but Jane convinces him they will not believe him. Instead, she suggests he be tested at a hospital.