AMAZING! I haven't watched much of Siwans work but he always does well! He just always seems to have great chemistry with all of his coworkers! The main actress also did well and I really enjoyed her acting. The movie was so intriguing and it had me on the edge of my seat the whole time. The way the story unravelled and how the movie kept you guessing if the killer is the detectives son or not or if the main characters father would survive or not. SOOOO GOOD! I recommend it! Plus its really fun to watch at night for bonus effect. It reminded me a lot of Strangers from hell. I loved how many conflicting moments there are in the movie, i guess thats all that its about...