Featuring the trademark Chow slapstick humor, CJ7 is a comedy about a poor laborer father, Ti, played by Stephen Chow, and his young son, Dicky. When a fascinating and strange new pet enters their lives, Dicky, an elementary school student, sees a chance to overcome his poor background and shabby clothes and impress his fellow students for the first time in his life. The "pet" however has other ideas and when Dicky