Inspired by Infinite MVs:

Myungsoo, a boy who has been raised with faith in loyality and trust, had his life changed forever when he reached the age of 16 years. Without an explanation he got tied up and carried away by strangers - in front of his best friend's eyes. Sungyeol, once known as his warmhearted and supportive friend, who he waits for to rescue him from that dark basement he got thrown in. Years passed living in captivity and torturement and it seems as if the boy lost any will. But then, one day, the unpredictable happened and someone actually manages to drag him out from hell.

But what are the effects that the experiments and the punishment left on him?

And what would he do, if his old best friend shows up again?