It is an English-language remake of Carion's 2017 French film Mon garçon [fr], and stars James McAvoy and Claire Foy.

He meets and briefly consoles his former wife Joan there, and promptly joins a search party before being interviewed by the police.

Relying on Joan's brother who works in the insurance industry, Edmond obtains the vehicle owner's address, a William O'Connor who lives at an isolated farm.

Joan arrives at the O'Connor farm, and finds another kidnapped girl unconscious in the back of his vehicle; Edmond had not thought to look.

She takes the child to the hospital, then leaves when Edmond sends a text telling her where the lodge is, asking her to contact Inspector Roy.

As a vehicle approaches, Joan and Ethan exit, hiding behind a tree before being found by Roy, who takes them to safety.

Sometime later, outdoors and surrounded by water and mountains, Joan and Edmond stand with Ethan as he flies a small remote control quadcopter.

McAvoy explained during an appearance on The Graham Norton Show that he was not supplied with a script or dialogue, and was made to improvise for himself.