Un gardien se retrouve bloqué à l'intérieur du parc d'attractions qu'il surveille, durant toute une nuit, lors de laquelle les monstres prennent alors vie et se lancent à sa poursuite. L'homme doit les vaincre afin de survivre jusqu’au petit matin et être enfin libéré.

Spiraling into a mid-life crisis and feeling disconnected from his family, Ben Marcus, a reality-TV editor, thinks he can only be happy by fulfilling his dream of becoming a professional comedian. Ben posts his stand-up routines to YouTube, and the videos fall flat. Then his tweener son posts Ben miserably failing on a home improvement project, and much to his teenage daughter’s dismay, it goes viral, launching Ben's social-media career as Selfie Dad. Although he quickly becomes an award-winning phenom, no amount of success brings Ben satisfaction. Through his friendship with a young coworker, Mickey, Ben finds the secret to a happy family . . . with his Bible in one hand, and his phone in the other.