The Bittersweet
又苦澀又酸甜 (original)
As a killer stalks the streets, a troubled young courier suspects that a doctor may be the long-lost sister he hasn't seen since childhood.
Starring Zhu Xuan, Lee Tae-ri
It's a drama and thriller movie, and has a rating of 5 out of 10 from Imdb which is fairly low for this kind of movie.
Watch it here
Not found streaming from United Kingdom.