This is a profoundly bleak comedy. Rainn Wilson delivers an excellent performance as an emergency medical services worker who desperately wants to leave his job and is battling the exhaustion that comes with it. He unexpectedly becomes a mentor to a new, inexperienced colleague assigned to accompany him on shifts. The two men immediately clash, and this tension is amplified by Rainn’s fellow employee—another weary EMS professional also seeking an escape. While not flawless, the movie contains genuinely moving scenes that elicited tears from me.

Source on TMDB