: Hayley discovers that her parents were murdered by Mary’s husband while he was under the influence of the Hollow.
Watch the official inside look for this episode to see the producers discuss the Hollow's psychological grip on Klaus and Marcel: [S4E5] I Hear You Knocking
: Reviewers from Telltale TV highlight this episode for its LGBTQ+ representation, as Keelin chooses to stay and help Freya despite being given the chance to flee. : Hayley discovers that her parents were murdered
: 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 Key Revelations " I Hear You Knocking "
" 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