In the busy nights of Seoul, five strangers who walk the same streets, eat at the same food stalls, share the same kind of work - there are more to their stories. 

Kim Jong Kook is one of the best trainers there is in Seoul. He commits to his clients, making sure they get the right workout and eating program there is. His life seems to be going smoothly as he does the same routine regularly. For himself, working out nonstop and sticking the same routine - it makes him forget the pain. He can smile in front of people without worrying too much if it’s too fake. He can give positive advices for others without them knowing that he doesn’t even follow it himself.

Song Ji Hyo is one of the top models in Seoul. In front of the cameras, she’s like a goddess. Her smiles melts everybody’s hearts. As she sticks to the lavish, luxury lifestyle in front of the public - nobody knows that behind closed doors, she has a problem. A problem that could possibly ruin her career and possibly end her life. Despite hearing other people’s pleas, she ignores it all. She has it under control, it’s what she really believes so. 

Park Shin Hye believes she is just a chef but she is not. As Seoul’s most prominent and beautiful chef, people line up for days to get a taste of the magicial cooking by her. She spends days and nights thinking of recipes that are unique. Feeling as if she doesn’t have a life of her own, she tends to spend her brief break drinking. It clears her mind from all the chaos she has during the rush hours of work. She takes proud of her cooking and the recipes she comes up with but when she loses control of her habit, she starts feeling completely lost in what to do. 

Kim Rae Won never has time for the nonsense of the entertainment world. Feeling as everybody what’s to follow what is the current trend, he sticks to only what he loves and wants to do. Catching the criminals is his only top priority as one of Seoul’s top detectives. He can go days without sleep once he catches scent of a criminal nearby and will do anything to put cuffs on them. And when he start suspecting that one of Seoul’s favorites are doing something illegal, his interest in the entertainment world starts peaking.

Hyun Bin, even his name itself is a cause of screaming in the midst of a crowd. As one of the top ranking actors in Seoul, his presence is as precious as to anybody. With a personality of pure class and the dimples that could hurt all the women, he makes sure to keep his popularity strong and grow. Wanting to be the best, he’ll do anything to keep it from decreasing.