CID

Season 1, Episode 485

Episode Title: The Case Of The Uninvited Guest

Air Date: 2007-10-05

Overview:

It's the wedding of the youngest son of a high-profile industrialist. But this joyous occasion turns tragic when the eldest son is shot dead, mouthing the letter "O" on his deathbed. Meanwhile, the middle son also goes missing. Who is "O"?