Sam's memories came back, but.. hallucinations started, specially about.. Lucifer.

Sam had destroyed the wall that blocked his memories from the cage, where he had been before Castiel took him out of there, but without a soul. It hasn't been too long since he had his memories back (And soul), so he was feeling.. Right.

However so, he started alucinating with Lucifer, and how he changed the reality by making him see things, like people killing themselves or bloody things. It was the worst. His brother, Dean, had given him a quick and temporal solution: He had to put pressure in the wound that Dean had sewed in his hand, that would make him feel real pain and make the hallucinations go for a while.

However, that was starting to stop working slowly, and Sam saw Lucifer more often than he would want to.

It was another case, and there he was: Looking in the library for information in his laptop and some books, it seemed to be another demon, but one of the crossroads, so they needed to get information about where to summon it. Lucifer was annoying Sam, but it was obvious that no one else saw him.. Just Sam.