Episode
20/20: Lock the Door Behind You
Overview
Never-before-broadcast video gives insight into the mind of serial killer Henry Louis Wallace, who confessed to 11 murders from 1990-1994, and his only surviving victim speaks in his first interview.
Details
- Series
- 20/20
- Season
- Season 45
- Episode
- Episode 23
- Air date
- 2022-05-13
- Runtime
- 81 min
Episode context
Lock the Door Behind You is Episode 23 in Season 45 of 20/20. It aired on 2022-05-13. The runtime is 81 min.
Previous / Next
Episode 22: Gone Before the Storm
Anthony Harris speaks with ABC News’ 20/20 more than 20 years after he was released from prison for a crime he didn’t commit, the murder of his neighbor Devan Dunvier. Her killer is still wanted.
Episode 24: Double Life, Double Murder
A couple is murdered inside their home. Could the killer be trying to hide a secret double life?
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Episode 25: Laura Lee Day
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Episode 20: Hell in Heels
For the first time in 20 years, Haylei Jordan speaks out to “20/20” and reveals insight into her mother’s troubled past, including her allegedly volatile relationship with Larry McNabney.
Episode 26: The Last Hunt
Two go on safari, one returns; an exclusive interview with a man who says he heard a shocking confession.
Episode 19: Dead Man Talking
The first network interview with Wendi Mae Davidson from prison, where she is serving a 25-year sentence for her husband’s murder.
Episode 18: The Devil You Know
Two months after his death, a new “20/20” reports on Robert Durst, the fugitive multimillionaire New York real estate heir and his shocking trial that led to a murder conviction.
Episode 17: The Cult Next Door: The Mystery and Madness of Heaven's Gate
Diane Sawyer decodes the mysteries behind the Heaven’s Gate cult, including an exclusive interview with Rio DiAngelo, a member who left the group.
Episode 16: The Dropout: The Rise and Con of Elizabeth Holmes
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Episode 15: Home Sweet Murder
An exclusive prison interview with Diane Staudte, the mother behind a sinister plot to poison her husband and two children.
Episode 14: You've Got Jail
Michigan mother of three Sharee Miller sat in the center of a complicated love triangle. She used sex, deception and the internet to pit her lover, Jerry Cassaday against her husband Bruce Miller.