Radius

A man awakens from a car crash with no memory of who he is. He flags down a passing car, only for the driver to die in a desperate swerve. He checks his wallet and learns his name is Liam Hartwell, realizing he has no idea where he came from or who he is.

Liam reaches a roadside diner hoping to find help, but discovers everyone inside is dead. He assumes the air might be poisonous and tents his shirt over his nose so he can breathe. He leaves the diner and continues toward town, unsettled and alone.

Using a map and the address on his license, Liam locates his house. News reports mention possible biological warfare, prompting him to seal a window with tape. The sense of danger tightens around him as he surveys the quiet neighborhood.

From his vantage point outside, a farmer in the vicinity dies, followed by animals near him. Liam grasps that the deaths are linked to his presence, not a virus, and the panic settles in as he struggles to control what is happening.

A woman also suffering amnesia comes to Liam's home, claiming she was with him during the crash. Strangely she can come close to him without dying, challenging Liam's understanding of his own condition. They decide to investigate their shared memory of the crash.

Liam and Jane drive to the crash site to search for clues. They uncover a charred circle on the ground, and Liam articulates a theory that the deaths are connected to his presence. A passing police officer confronts them and dies when Jane retreats from the scene.

To prove the danger, Liam uses a goat to show that nearby living beings die unless Jane stays within 15 metres. Jane had a CT scan after the crash, and they decide Liam should be tested as well, heading toward a hospital for evaluation.

At the hospital, a doctor confirms Liam is physically healthy, but the lingering fear of police separation drives the couple to flee. Jane hesitates for a moment at the elevator, while Liam steps inside alone, urges others to leave as the doors open, and eventually rejoines her as they exit together.

A news report identifies Jane as Rose Daerwood, whose husband Sam pleads for her safe return. Rose persuades Liam that they should seek help, though Sam remains skeptical. Liam again demonstrates the animal deaths to prove their connection, while Sam recalls Rose’s disappearance while searching for her missing sister Lily.

On their way toward Liam’s remote cabin, they learn an unexplained cosmic anomaly struck Earth at the site of their earlier accident. They press on to the cabin, where Rose discovers hints that Liam may have abducted and killed her sister Lily, while Liam recalls an attempt to abduct Rose at the moment of the anomaly.

A man and his two adult sons seize Liam and Rose, and the father orders the sons to kill Liam. Rose chooses to separate herself from Liam, triggering a violent chain of deaths: the father and one son die, while the remaining son shoots Rose.

Liam’s aura eliminates the remaining attacker, and he drives Rose to the hospital for urgent treatment. Rose is taken in for care as Liam, wounded by his own actions, shoots himself in the head, ending their intertwined destinies.