TV Series ”Mantis: Killer Out”'s final episode reaches record high of 7.4%... Shocking developments until the very end

*Contains spoilers and synopsis. "Mantis: Outing a Killer" broke its own record in viewership ratings and ended on a high note.
According to Nielsen Korea, a viewership research company, on the 28th, the SBS Fri-Sat TV series "Mantis: Murder" aired on the 27th.
The final episode of "The Mantis' Outing" recorded a rating of 7.9% in the metropolitan area and 7.4% nationwide, breaking its own record for highest viewership rating. In the final episode broadcast on this day, the perpetrator of the "Mantis" copycat murder case was killed, and the serial killer
A mother, Jeong Yi-shin (Ko Hyun-Jung), felt happy when she saw her son Cha Soo-yeol (Jang Dong-yoon), who had grown into an adult and had compassion, unlike her.
Choi Jun-ho (Jo Sung-ha), who was working for the serial killer, is murdered, and the two come face to face again. The ending suggests that the joint investigation between the serial killer mother and her detective son will begin again.
The afterglow of the SBS Fri-Sat TV series "Mantis: Outing of the Killer" is expected to continue for some time to come.