患有自闭症的酒店夜班服务员巴特(泰伊·谢里丹饰)为提高社交能力，他利用监控纪录客人一举一动。某天一名女客人被杀害后，警方开始怀疑他。然而杀手还在行动，他既要面对警方又要找到真凶。Bart Bromley is a highly intelligent night clerk on the autism spectrum. When a woman is murdered during his shift, Bart becomes the prime suspect. As the police investigation closes in, Bart makes a personal connection with a beautiful guest named Andrea, but soon realizes he must stop the real killer before Andrea becomes the next victim.