Under the Skin (2022)

Both are detective style drama. One to find out the death of his mother while the other to solve the mystery of the death of his master. Both also deal with forensic doctors and police .

Both have crime, action and two male leads and no female lead.
Both guys in under the skin are detectives.
Both guys are there for one another in under the skin too.
Not a lot of bromance in under the skin as compared to Killer and healer but still, good enough and the plot is good too.