Ken (Stanely Fung) and Jim (James Wong) who have been rivals since birth. Now they own competing business and do whatever it takes to try and one up each other. Stanley's looking for cheap help so he can stay in business. He has luck; four desperate cousins (Lawrence Cheng, Sing Fui On, Wong Jing and Chan Shan Ho) are looking for employment. They hesitate at first until they see four hot women living next door. But they lack the skills to woo the ladies, so they call the Love Doctor (Andy Lau), who teaches them the unbeatable "13 Ways to Seduce a Woman". Will the two rivals ever settle their differences? Is it fate that four bachelors live next door to four unhitched women?