Rachel dates some guy named Russ who is exactly like Ross, but just slightly different. The rest of the friends see it except for Ross and Rachel. When Ross finally meets Russ, it's like a boring competition between the two. They compete in doing a puzzle and even compete against who is a "real" doctor. Although the two are splitting images of each other, Ross seems to dislike Russ and points out parts of his personality that irritated him. However, the things he pointed out were exactly the things he did himself. After given a closer observation, Rachel finallt realizes that Russ is just like Ross. She's freaked out and dumps him.
This episode was pretty funny. The idea of Russ is somewhat a little less mediocre than genius. Whoever thought of that should get some kind of reward. To make it even better, David Schwimmer played the part of Russ as well. Only he could get the character down so perfectly.