After returning to her hometown, Zhou Yan's girlfriend of five years, Su Ya, suddenly undergoes a drastic change in personality and aggressively demands an outrageous bride price of 888,000 yuan. Thanks to his unusual ability to hear the thoughts of his pet dog, Xiao Ba, Zhou Yan discovers that the woman before him is actually an impostor wearing his girlfriend's clothes. To protect himself and uncover the truth, Zhou Yan plays along with the fake girlfriend and her suddenly visiting father, Su Dazhu. When they attempt to assassinate him, he cleverly escapes with the help of the police. Later, he uses a family gathering to shake off their surveillance and secretly travels to Su Ya's hometown to investigate. Finally, with the help of Su Ya's best friend and the police, Zhou Yan rescues the real Su Ya, who has been imprisoned in a cellar.