OCN's new drama titled "Strangers From Hell" has shared a behind-the-scenes clip presenting the actors on their first day on the set.

As his comment about their first day of shooting, Im Siwan said, "Taping has begun for 'Strangers From Hell,' and I expected that I would be more nervous, but everything is going better than I thought it would.

It could just be me, though. The story itself is a little dark and heavy so I assumed that the vibe would also be that way, but it is quite the opposite, filming has been enjoyable."

Lee Dong Wook also shared his thoughts about his first-day recording, and stated, "I was a bit worried because the role is not easy, but I talked to the director again and again, and the staff gives help too, so I think things have been going smoothly." He added that the cast got together several times before kicking off the filming for the drama, so their relationship has been great.

Recently, Im Siwan and Lee Dong Wook revealed how they became closer before starting the project. Im Siwan said that he talks about the drama with Lee Dong Wook and other things often, while Lee Dong Wook shared that he was interested in Im Siwan when they met, and even said great things about him.

And as what one can see in the behind-the-scenes video, the actors appear to be having a great time together, spending their free time cracking jokes and laughing with each other. Also, when the actors are in character, they focus on what they do and listen to what they are told to do.

"Strangers From Hell" will start airing on August 31 at 10:30 p.m. KST, right after the drama "Watcher." This project is Lee Dong Wook's first experience to be part of a mystery thriller story.