The premise was solid if predictable.
Two young brothers - one good one bad.
There is a serial killer that the police are trying to track down.
There is the usual female detective who is determined to help the ML find him - she has been stalking the ML from childhood - but he doesn't recognise her.
When the serial killer appears - every viewer will know who he is - it is made painfully obvious - to everyone except the ML.
The acting is passionless rather than bad - the cast deliver lines rather than act them.
The FL eats like a pig - I am always amazed at the amount of food that Asians can stuff their mouths with in one go.
The series has about ten episodes too many.
I have arrived at ep 5 somehow - but ep 6 is going to be beyond my patience.