Based on the 1997 novel by acclaimed author Rebecca Godfrey, Under the Bridge tells the true story of 14-year-old Lina Wilke (Fritika Gupta) who went to a friend's party and never returned home. Through the eyes of Godfrey (Riley Keough) and a local police officer (Lily Gladstone), the series takes us into the hidden world of a young girl accused of murder.