The Key Man (1992)

When Lok Yin (Alex Man) furthers his study in U.S.A., he is jailed for 7 years because of manslaughter. His girlfriend, Ching Jan (Idy Chan) then get married with his best friend, Ling Fung (Wilson Lam). After going back to Hong Kong, Yin determined to modernize hi family's department store business. But the luck is not at his side, first, his elder brother Lok Man (Hui Siu Hung) and sister-in-law (Ma Qing-yi) are killed in a traffic accident. Then his father is died because of heart attack.