The film (Life Line) (Director Kim Sung-min / Provided by TVING / Produced by Red Peter Pictures) is a work that deeply illuminates the lives of firefighters working on the front lines of disaster sites, the post-traumatic stress disorder (PTSD) they experience, and the process of living with it. Unlike existing works that portray firefighters with heroic images, this film honestly captures the reality and inner world of the firefighting profession through their voices.