Retribution (2006)

"Retribution" is a truly unique ghost story, at least when compared to the typical American/British kinds. In this detective story, an older detective is starting to believe that he is a suspect in a series of murders that he's investigating. A missing button is found at the crime scene, the kind that matches his coat, and his finger prints are sound on one of the murder victims. He also begins to see glimpses of a woman in a bright red dress. As the story progresses, more people are killed in the same fashion, by being drowned in salt water, by their loved ones over minor offenses. A father kills his son because the son owes a classmate $4500 and a wife kills her young husband because he was sexually aggressive with her when she wasn't in the mood. The detective soon learns that the first victim was killed by her boyfriend when she broke up with him. Cleared of any suspicion himself, the detective is still haunted by the ghost in red. The one clue connecting all of the killers, and the detective, is that they all rode a ferry daily fifteen years ago, and passed an old asylum where the girl in red was kept and evetanully died. Because none of them tried to help her, she is now causing them to kill. Will the detective solve the ghostly riddle before he kills someone hie loves or is he already too late?