当小贩的武（卢惠光饰）突然人间蒸发，后报梦给妹妹娴往找其友民（李灿森饰），娴找到民后觉得事有蹊跷，於是报警求助。重案组李sir（李修贤饰）查出武被民及其同党四人骗取了数十万元，原来民恐怕被武识穿而决定先发制人，诱骗武到他家中并把他杀掉，民和友人利用速递车弃尸而逃。最后李sir成功把四人绳之於法。Inspector Lee and his team of investigating officers look into the strange disappearance of a respectable loan shark.
