Insanity (2015 film)

Insanity is a 2015 Hong Kong-Chinese psychological thriller film directed by  and starring Sean Lau and Huang Xiaoming. It was released on April 2, 2015 in Hong Kong and a day later in China on April 3, 2015.

Premise
A promising psychiatrist faces the dark side of his mind once again after treating a patient who was convicted of murder.

Cast

 * Sean Lau as Fan Kwok-sang (范國生)
 * Huang Xiaoming as Chow Ming-kit (周明杰)
 * Fiona Sit as Shum Po-yee (岑寶兒)
 * Alex Fong as Doctor Lui (雷醫生)
 * Paw Hee-ching as Fong Wai-ling's mother
 * Michelle Ye as Fong Wai-ling (方慧玲)
 * Fredric Mao as Director Lau (劉院長)
 * Alien Sun as Chow Ming-kit's mother
 * Bonnie Sin as Wong Yan-nei (王恩妮)
 * Michelle Wai as Mona
 * Joseph Lee as Officer Lee (李警官)

Reception
By April 13, 2015, the film had earned HK$3.18 million at the Hong Kong box office and CN¥44.03 million at the Chinese box office.