Locke_key_2020_streaming_s01e03

In the third episode of , titled " Head Games ," the Locke siblings use the Head Key to explore their own minds and uncover hidden memories of their father. The episode is a turning point where the series moves into deeper psychological and supernatural territory as the children confront their grief and fear. Key Plot Developments

: Found by Bode in a portrait of his ancestor, Chamberlain Locke. When used on the "Ghost Door," the user's soul leaves their body, allowing them to fly and speak with ghosts. Locke_Key_2020_streaming_s01e03

: Reacquired by Dodge; it acts as a magical lighter that can set objects on fire. In the third episode of , titled "

: Inside their minds, they revisit a bedtime story about a sea monster told by their father, Rendell. They realize he told each of them a different version: a happy ending for Bode and Kinsey, but a dark, cautionary tale for Tyler. When used on the "Ghost Door," the user's

: Nina finds Rendell’s old high school yearbook and notices a strange Omega symbol drawn over a photo of Lucas Caravaggio—the same symbol Sam Lesser had tattooed on his wrist.

: Kinsey discovers a monstrous "fear creature" lurking in her mind. By the end of the episode, she uses the Head Key to physically drag her fear out, stab it, and bury it in the woods—a choice that drastically changes her personality.