The man behind the mask

Jeon Jungkook and Lisa are best friends since forever. Through thick and thin, they've always been together. But in what Lisa thought was a regular night, something happened that nobody in their small little town would ever forget. Jungkook mysteriously disappeared and was declared dead. Everybody thought that he was gone forever, and so did Lisa. But what happened while she was scrolling through her chats, was the turning point of it all. But the question was, who was behind it? Who was the man behind the mask?