As two young volunteers in a clinical drug trial, their illicit romance poses startling dilemmas for the supervising doctors. Is their sudden and intoxicating chemistry real, or a side effect of a new antidepressant? Starring Paapa Essiedu (I May Destroy You) and Taylor Russell (Bones and All), directed by Jamie Lloyd (Cyrano de Bergerac) and written by Lucy Prebble (Succession).