The series started strong, with a good cast, good introduction of the aftermath of a successful lawyer
after episode 4, the story suddenly took a turn from great to good,

the bgm from first 2 episode was on point after episode 4 suddenly became cliche and do not fit and not a good timing during as the story progresses.

can't say anything bad about the cast, it was the progress of the story and lack of timing of the OST after episode 4

Did they change the editing staff after episode 4,?