It's a very intriguing story. If true (and I'm certainly not saying it was), it could account for the venomous anger against "Paul" that was boiling in John Lennon for years afterward...and some of the odd lyrical comments from Lennon and some of the photographic oddities on the Beatles' later album covers.

If Paul did die in the mid-60s, due to an auto accident, and he was quietly replaced by a lookalike, then I'd have to say that the lookalike did a darned good job in his role and also made a bloody fortune! That's a powerful motivation for taking on the role, isn't it?