Mr. Mo convinces the trio to help him win Lei Zan Zan over and the three of them come up with a plan to ruin Chan Yau Shing's engagement party. But little does Chi Kiu know, Nok Hang and Ka Hei accept a commission to help one other person and that it is all just a charade. When a lady asks for their help, the trio sets out to unearth the mystery behind the case.