Plot: Though PAK-NIN claims that it's impossible to search for the suspect CHAN CHIT-WO among the Dragon Gang, CHUEN-KUNG believes those who have been exposed to explosives for a long time must show a variety of abnormal symptoms. Field Officer CHOI follows CHI-SIN and discovers that he has several symptoms which seem to be identical to those, which, according to CHUEN-KUNG, might appear on the body of CHAN CHIT-WO