if you have time to watch better watch other drama

I've never felt so upset after watching a drama. I watched this drama because an account cut a scene on tiktok, where the unattractive female lead was shown with her double life. I was expecting 200 Pounds of Beauty drama like, then I saw the first m**der scene and I was confused, I kept going and finished it in one go, because it's only 7 eps. and as the episode end, I was super confused as to what is the goal of this drama, what actually they want to achieve? what a waste of time. and the 3 actors for 1 lead was unnecessary imo.