Shu-wei Lin – a gifted student that enjoys being a tattletale – has long been bullied by all of his classmates; the notorious trio of the class makes fun of him on a daily basis. By chance, the class teacher assigns the four of them to community service. The boys sure have every intention to make the most fun out of their duty. One night, the four of them decide to steal a safe from a demented elderly loner and unexpectedly capture a cannibalistic humanoid during their heist. The four employ a variety of odd methods to investigate the little creature after school at their secret base in hopes of understanding it.