Xiao Jiang discovers that Luke had previously had a romantic affair with a young male university student, called Han Dong, whom he had met at the university campus, together with Han Dong's girlfriend, Xiao Ning.
He learns that Luke's romantic relationship with Han Dong had been discovered by Xiao Ning, who is a devout Christian, and had decided to punish her boyfriend by 'outing' him and publicly humiliating him at church.
[citation needed] The man playing the role of Han Dong is mainland China model, actor and magician Jian Jiang, who is from Guangzhou, while the woman playing his girlfriend, Xiao Ning, is Indonesian-born and Australian-educated actress Yung Yung Yu.
Both of the main actors, Pierre-Matthieu Vital and Qilun Gao, are indirect friends of the film's director, Simon Chung.
Vital, who plays Luke, is from France, but lives and works in Guangzhou and regularly visits Hong Kong, where he first met Simon Chung.