Tricky Brains 1991 (Hong Kong), also known as Jing gu jyun ga is Hong Kong drama premiere on Feb 2, 1991
Stephen Chow plays the "Handsome Tricky Expert" who is hired by a man to break up his daughter relationship with Kit (Andy Lau). So he moves in with Kit and his father (Ng Man Tat) as his "long lost brother". [Wikipedia]