Concept Idea 3

 This opening sequence is a thriller.

There is a man playing guitar on a stage with the noise of an audience in the background. it then cuts to a man loading up guns and putting on a bullet proof vest and and some armour. it then cuts back to the man playing guitar on stage and then quickly cuts back to the man with the gun walking towards the door of the room with the man playing guitar is performing in. the man finishes his song and there is a shot of the gun man opening and going into the room. a black screen appears and then a loud bang of a gunshot. a shot of the door that the man has just walked into is shown and the man that was playing the guitar walks out holding the gun and his guitar.

The narrative for the rest of the film is about how the 2 characters are related together and what happened inside that building.