Both dramas have a hidden character who commits serial murders in the name of punishing evil for the people, revolving around the idea that law cannot give justice to all.
Both have two MLs and one FL leading the investigations, though in SH they're all official police, while just self-proclaimed detectives in TToS.
There is a little more bromance/brotherhood in SH comparatively, though both do not hold this focus.
In SH, its the ML who strongly pursues a cold case, while its the FL in TToS.
Both have two MLs and one FL leading the investigations, though in SH they're all official police, while just self-proclaimed detectives in TToS.
There is a little more bromance/brotherhood in SH comparatively, though both do not hold this focus.
In SH, its the ML who strongly pursues a cold case, while its the FL in TToS.
Both dramas feature serial killings by a victim of an old unsolved case. Both have special task force teams created to solve the case, with the main leaders all involved in the said old case. Though in Serial Homicide, there is slight bromance, and romance, there's none (bromance/romance) in The Abyss. The 2ML-1FL triad is consistent in both.



