My Roommate Is a Detective Episode 2

With superb investigative and reasoning abilities, the detective team locates the perpetrators and brings them to justice. Another night, a group of female textile workers who had just left the night shift boarded the last tram. The tram drove to a three-way intersection and was forced to stop due to heavy fog. The several-ton tram and the female workers in the car disappeared without a trace, leaving only huge footprints, blood and twisted tram tracks on the ground. (Source: Written by kisskh)