“A Bona Fide Killer” has unveiled a new making-of video! Kong Hyo Jin and Jung Jun Won brainstorm how to film a scene realistically, making each other laugh while tossing out funny ideas. Meanwhile, Kong Hyo Jin gestures to Sung Dong Il and calls him, “Our pillar.” “A Bona Fide Killer” airs every Friday and Saturday at 9:50 p.m. KST. Watch “A Bona Fide Killer” on Viki with subtitles:Watch Now