Talia March, Pallas Llewellyn, and Amelia Rivers, aim to unravel the mysteries of a forgotten night that awakened their psychic powers. They suspect they were test subjects and search for others like them. When they follow a lead from a podcast fan, Phoebe, they discover she has vanished, drawing the attention of Luke Rand, also chasing the same list. Suspicion and danger arise as a killer stalks them.