 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.During Xiao Jiang's unravelling of this mystery, Luke suddenly disappears from the accommodation he had secretly shared with Xiao Jiang.As a result, Xiao Jiang asks for the help of a female friend, Lan, to try to locate Luke, and help resolve once and for all the central mystery of Luke's inability to speak.