Neal's Brother – SAY WHAT?

On his way to the office, Peter spots Neal, or who he thinks is Neal, miles out of his radius. When Peter confronts him, he says that he doesn't know peter or this 'Neal' person & that he's with his, WIFE? What happens when Peter brings this person in, & what does it mean for the real Neal? Will this look-a-like change team dynamics? WILL NOT BE COMPLETED HERE! I'VE MOVED TO AO3