Spare Me Your Mercy

Both dramas are based on a novel of the same writer and both od them include criminal investigation and a doctor main character.

Spare me your mercy and Triage They share the same universe in the novel they are based on, are also written by Sammon

Both are queer (one is wlw the other is mlm)
DOCTOR x COP
though no similar storyline, both are amazing plots

One of the mains is a suspect in murder cases, the other one is investigating him. There are handcuffs, twisty crime plot, complicated conflicting relationship dynamics, teamwork phases, blossoming doomed romance.

This isn't a bl explicitly but the male leads have pretty intense chemistry and tension through out that makes it better than so many of the actual bl's out there.

they both have the same story a doctor who illegally helps terminally ill patients with euthanasia and a detective who tracks down the illegal activities to eventually lead to the doctor.

Both BL dramas take place in a medical environment and include criminal investigation.
They are based on a novel of the same writer and both are supposed to be sequels of Manner of Death.

Same director and screenwriter. Both share the premise of an inspector investigating a series of serial killings with his lover being a prime suspect in the murder cases.

Both Dear Doctor, I’m Coming for Soul and Spare Me Your Mercy are Thai LGBT / BL Dramas that have a doctor as one of the main lead characters. Both deal with death in their primary story line.

-Thai Bls
-Murder/mystery
-Investigation
-Concealing once identity

History 3 trapped is less intense and more comedic, however, there are definitely similarities between the two. Both have one character that is quite firm with their beliefs and morals who falls in love with someone who challenges these morals. Also in both shows there is a heavy presence of crime and police officer main characters.

The creator is the same, Sammon. Also many of the same themes in terms of mystery/medical thriller elements.