The malicious Master and Meng Gu, a squid ninja, are fishing by the river to cool off. A strange treasure chest gets caught on the line. Meng Gu and the malicious Master try to open it out of curiosity, but it doesn't budge. From then on, trouble begins. Inside the treasure chest, a ghost filled with resentment wails every night. Those who mistakenly thought it was a treasure chest and stole it either die or become foolish. The malicious Master tries to uncover the hidden story of this ill-fated treasure chest.