Forensic Heroes IV

During a video shooting session at the TV station, Cantonese opera clown Lang Siu-bo suddenly vomits blood.

The opera troupe’s Zhangban Wong Lap-keung is killed.

Ying-suet denies hurting Shuk-man. Shuk-man claims she has had an accident.

Ko On and Fai-wong come up with a scheme to solve the opera troupe multiple deaths case.

Based on the type of algae on the floating clown corpse’s clothing and direction of current on the date of death

The parachute see anchor enables Ko On to track down the name of a yacht to which it belongs.