You're looking for a story for a montage, specifically from 2013, and you mentioned Dramacool.
Usually known as a pop star and rom-com actress, Uhm Jung-hwa transforms into a hollowed-out shell of a mother. There is a scene in a police station where she breaks down—not with screaming, but with silent, physical collapse—that earned her the Best Actress award at the 50th Grand Bell Awards. montage 2013 dramacool
The title Montage refers to the way the killer pieces together fragments of past crimes to create a new reality—a brilliant metaphor for how trauma and evidence merge in the human mind. You're looking for a story for a montage,