A man in his early 20’s has nightmares of a devil seeking to take his soul. He doesn’t know who he is and why is it after him. Later he starts seeing him in day time while cooking, studying or just doing random stuff. He finally loses his mind and calls out to confront him. The devil approaches him and they both have exchange of dialogues/dual.

In the end the man losses his will to take on the devil and as it appears the devil is about to finish him off, The man wakes up from his sleep and is relieved that it was just a dream, its only when devil appears from the corner and laughs out devilishly while the man is not aware of his presence.

It’s just an idea, but lets see where it can lead to.