Postman Sam, 23, from Camberley in Surrey, is a well-known face on his rounds, but while he may be a pro at delivering the mail he hasn't had as much success delivering chat up lines.

Talented musician, artist and all-round creative Eddie from Falmouth in Cornwall is looking for romance. Eddie is autistic, which can make him anxious and shy around girls he likes. Can he overcome his dating demons when he meets Cassie?

Jamie, 22, from Somerset, has never had a girlfriend or been on a date and is baffled when it comes to matters of the heart. Jamie has Asperger syndrome, and struggles to understand anything that isn't logical, especially the rules of courtship.

Richard, who is 42 and autistic, has been on several first dates but has never managed to get a second. He pushes himself out of his five-mile comfort zone to meet Lucy, who's 45.