ParkMin
I was losing my mind by the sheer amount of repeated flashbacks from their past. The exact same sequence of flashbacks was played more than any amount considered to be normal. The doubleganger didn't really have an active role in the drama, you see her once at the beginning and at the end. The chemistry between the leads was quite right. The introduction was interesting enough but once they switched the events to the family it fell apart. There were a handful of members in the family of which none of them were interesting or appealing, which is unfortunate because they occupy most of the runtime. All of them were a copy-paste of the exact bad-rich-scumbag character.