Don't really know if some dramas with the exact plot already exists but this one was actually a good one. The plot has a lot of potential and I really hope they made it to a 10-12 episodes series to flesh out the characters' stories and motives more. The music and overall scoring is actually good. Acting needs to be improved but I still liked it nonetheless. The budget is budgeting as it is evident on the overall production. Hopefully they'll do a second season to redeem themselves. Still a good watch tho.