Unwanted Company- A Beatles/ Lennison Fanfic

Brian gets an assistant to help him out with a few things, the guy is a little odd. Maybe a bit too odd. Little did The Beatles know that life itself would soon turn to an emotional destruction because of the cruel man's mind as well has having a certain love interest in one of the guys too but yet one of the band members also falling for the same lad and also his best mate.

Will the guys speak up?
Is Brian aware of any of this?
Can they handle this and keep their friendships and band standing?