![Twinsanity](https://image.tmdb.org/t/p/w185/3zPO2p0dY8XQ9ltl0iEtSlXFs8Q.jpg)
A young woman has a tragic accident, slipping on a skateboard and falling off the roof of a tall building. Koo Chi Ming, an insurance investigator, is sent to determine whether the girl’s death is an accident or a suicide and he recognizes the young woman from an earlier chance encounter.