Grayson investigates whether Lady Jayne is a vampire hunter; Lucy employs absinthe, romance and a tour of London to mend Nina's broken heart; Grayson earns a powerful enemy.

Harker learns Gen. Shaw isn't the hero he pretends to be; Van Helsing's first test with the solar serum is a failure; Davenport's people abduct Renfield; when Grayson dances with Mina at her engagement party, their feelings are revealed.