The Accidental Detective (2015)

Both are funny and entertaining comedy-action movies, with a wonderful chemistry between main leads. Both have Sung Dong Il in their cast. Highly recommended for a Sunday afternoon leisure time!

They both have the same witty yet serious outcome to them, like "The Accidental Detective," the "Intern Detective," is someone who has wanted to help and work with cops, but failed the entrance exam, they both end up working with cops in cases. This is a great movie and you shouldn't miss out on it at all.

Both have Kwon Sang woo as the lead except his role is reversed in both dramas. In
QoM he is detective where in TAD he is civilian who has interest in solving crimes and helps the detective. In QoM the civilian role is done by Choi Kang hee.

Both are action comedies about detectives and fun teamwork. The comedy to action ratio is about the same in both, so they are both hilarious to watch (for the most part).

*) Detective thingy
*) Based on friendship case
*) Same amount of comedy and action

both plots are about people that "accidentally" become detectives. they are both comedy mystery genres and overall a fun watch

They have a similar genre and comedic themes. Both great movies!