Susane E. Lee

Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."

After Richard and Emily renew their vows, Lorelai, Luke and Christopher find Rory and Logan together.

Rory is disappointed when Logan doesn't invite her to be his date at a book-signing party thrown by his father; Richard spies Emily talking to a former flame and rear-ends her car, forcing an opportunity for reconciliation.

Rory is touched when Emily and Richard throw a party to introduce her to their Yale alumni friends; when Dean arrives at the party to pick up Rory, it is clear to him that he has no place in her privileged world.

On the eve of Lane and Zach's wedding, party plans for both sides of the wedding party go awry.

Melinda must help a former rock star who is terrorized by his father's ghost.