I don't know any of the cast, their acting was not bad, a bit stiff at times.

The story... is a bit creepy as it is, but the way characters normalize and find excuses for a stalker-ish behavior, it started to bother me a bit. characters equal 'obsessive behavior' as something positive! like 'passion' or 'enthusiasm'.
This drama felt like a 'Stalker's dream come true'! stalk someone, lie to them, then apologize, everything will work out!
And the cops are as useless as usual! if they weren't useless this drama would've ended with 4 episodes.

The music wasn't noticeable tbh. I gave it 5 because it wasn't distracting.

It wasn't something I would watch again. thought it wasn't bad for a one-time watch.