Smile

At a psychiatric ward, therapist Rose Cotter meets graduate student Laura Weaver,[a] who explains that she recently witnessed her professor kill himself. Laura claims she is being terrorized by an invisible entity that appears as various smiling people and has foretold her death. She begins screaming and panicking, prompting Rose to call for help; Laura suddenly becomes unnaturally calm and smiles, then fatally slits her own throat, terrifying Rose.