The ending is the most controversial aspect. While some found it a clever twist, others felt it was absurd and ruined the preceding film. Key Takeaways On the Line Movie Review | Common Sense Media

The film does a good job of building suspense early on, utilizing the radio station setting effectively.

The film features a dramatic, highly divisive twist ending that recontextualizes the events of the movie. Review Summary

Elvis must stay on the air and follow Gary’s instructions while trying to locate him, leading to intense psychological pressure in the closed setting of the radio station.

On the Line is a 2022 thriller written and directed by Romuald Boulanger that focuses on a "one-location" plot, following an abrasive radio DJ whose family is kidnapped during his night shift. The film is available on platforms like Netflix.