On the eve of April Fool's Day, Li Xian, Yang Gu, and Gu Shisan went to a trick shop to buy a trick hand. After returning home, they found that the hand was lost on the road. On the way back to look for it, they found a hand that looked very similar. They thought it was the lost trick hand, so they picked it up and took it back. But they didn't know that at that moment, the disaster had already begun...