Actor Daniel Wu (Ng Yin Cho) played a schizophrenic cop in his latest film, That Demon Within.
According to an article in Hktopen, he admitted that this film production was very tough and in order to get into character he "hid himself away".
He revealed that he was very quiet at home and neglected his then pregnant wife when he got home.
Thus after the shoot, he immediately flew to South Africa with his wife for a vacation to unwind.
He said: "My character is a rule abiding cop, when he was little his father would hit him when he made a mistake.
"As an adult when he made a mistake he would whip himself. As time went on, he became a very suppressed person."
He said that at first when he learned that he had to play this character he was already mentally prepared.
He even deliberately met with schizophrenia patients to understand the condition
He added: "During that period I became very introverted, very lonely. The emotions very naturally came.
"Even when I went home after work, I turned on the television and stared at it. I had no idea what was on it, and I didn't chat with my wife!"
Daniel's wife Lisa S of course understood as a fellow artist, but as a father now, Daniel said he would consider taking on this type of characters carefully.
He said: "My wife is an adult, of course she would understand. However children wouldn't. I know it is bad to bring emotions home, I have to learn not to bring work emotions home!"