Zhang Jian-He, a reserved and rather introverted cartoonist, is dating a beautiful and conservative girlfriend, YaShi. One day, in an unfortunate dispute with his best buddy Chen-Jun, is accidently killed by Zhang Jian- He.
To cover up his deed, Jian-He cleaned the bloodstains and any entailing evidence of the crime scene, and found a unique and creative way to dispose of Chen-Jun's body. Soon Jian-He discovered a shocking truth: Chen-Jun was sleeping with YaShi all the time. Zhang Jian-He felt the utmost pain for being cheated by his best friend, and the girl he love is just a slut.