A group of troubled young adults are sent to a remote coastal rehabilitation retreat after various scandals, crimes, or mental breakdowns. The program claims it will “fix them,” but the place quickly begins to feel like a psychological experiment rather than therapy. Justin Foley is there for addiction recovery; Maddy Perez is there for a violent altercation with an ex, Del Luccetti is there for vandalism and fighting, Cadence Sinclair is there for a mysterious breakdown and memory loss; James Cook is there for assault charges and reckless behaviour; Lee is there for being considered “dangerous” and antisocial; Effy Stonem is there for a mental health relapse; Fleabag is there for self-destructive behaviour and family intervention and Rihanna is there for criminal charges from street racing. They each hide a deep secret on their reasonings there.