Overview: LAN pretends to be an agent o+ real estate and one night she accompanies a client to visit a unit. Her client leaves earlier and is attacked by the sex maniac. LAN still not there and has no evidence to catch the sex maniac. LING receives calls with filthy jokes and her underwear disappear from time to time. However she does not relate this to the case. One night when LAN is attacked by the sex maniac in her house when she returns after work. LAN is shocked and KWAN visits her. This recalls her unpleasant memory and she refuses to see KWAN. Luckily WA manages to calm her with treatment. KWAN secretly goes to visit LAN and he is disappointed to see LAN being so intimate with WA. Being encouraged by WAI, KWAN goes to see LAN again. LAN is touched and agrees to meet him but the curtain between them still exists. After investigation, WAI and KWAI arrest the sex maniac attacking LAN……