: Freya risks her life to create a cure for the infection the Hollow placed on Klaus, solidifying her bond with Keelin as they work together to protect the family. Key Revelations
: The final scene reveals that Sofya is actively conspiring against the Mikaelsons, working with a witch named Dominic.
: The two are drawn to an abandoned house where they are intended to kill each other, providing a massive sacrifice of power for the Hollow. Ultimately, Klaus spares Marcel, knocking him unconscious instead—a major moment signaling his ongoing redemption arc. Ancestral Secrets & The Werewolf Link [S4E5] I Hear You Knocking
While the men battle their demons, Hayley Marshall uncovers chilling details about her own lineage through Mary.
" I Hear You Knocking " is the fifth episode of the fourth season of the CW series , which originally aired on April 14, 2017. This pivotal hour serves as a psychological deep dive into the show's two most complex power players, Klaus Mikaelson and Marcel Gerard, as they are forced onto a violent collision course by a malevolent entity known as The Hollow . Psychological Warfare: The Hollow’s Manipulation : Freya risks her life to create a
: The Hollow manifests as his abusive father, Mikael. These hallucinations taunt Klaus, suggesting he is weak and that the only way to protect his daughter, Hope, is to revert to his most brutal, murderous self by killing Marcel.
Watch the official inside look for this episode to see the producers discuss the Hollow's psychological grip on Klaus and Marcel: This pivotal hour serves as a psychological deep
: A link is revealed between the Hollow's dark magic and Hayley's former wolf pack, suggesting that the ancient evil has been targeting her bloodline for generations. Emerging Dynamics: Freya and Keelin