There is a surge in strange rape cases around Singapore. Victims say the rapist is covered in a strange dark oil, and investigations reveal that there were no signs of forced entry in the victims' homes. All of these point to the work of a supernatural being in folklore… the Orang Minyak.

Corpses are found drained of blood. The puncture wounds on the corpse's neck lead Thursday to look at vampire legends and folklore. Daniel discovers that the killer has a penchant for a specific blood type - and Thursday happens to be of that blood type.