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‘Memory of a Killer’ Episode 5 Preview: “Betrayal”

The promo teaser for Fox’s Memory of a Killer episode five teases that we’re about to discover more about Angelo’s backstory. Episode five, “Betrayal,” will air on Monday, February 23, 2026 at 9pm ET/PT. 

“Betrayal” Plot: While on a hit, Angelo remembers a pivotal moment in his life, five years ago, when he learned his brother had Alzheimer’s and Angelo was forced to make a life-changing decision.

Patrick Dempsey stars as Angelo Flannery, Michael Imperioli plays Dutch, Richard Harmon is Joe, Odeya Rush is Maria, Daniel David Stewart is Jeff, and Peter Gadiot plays Dave. Aaron Zelman and Glenn Kessler serve as co-showrunners and executive producers.

Richard Clarkin and Patrick Dempsey in ‘Memory of a Killer’ episode 5 (Photo by Christos Kalohoridis © 2026 Fox Media LLC)

Memory of a Killer Synopsis, Courtesy of Fox:

Inspired by the book and 2003 award-winning Belgian film De Zaak AlzheimerMemory of A Killer is a dramatic thriller starring Emmy nominee Patrick Dempsey as a hitman, Angelo Doyle, leading a dangerous double life while hiding an even deadlier personal secret. Emmy winner Michael Imperioli stars opposite Dempsey in the role of Dutch, Angelo’s oldest friend and an accomplished chef whose restaurant is a front for criminal enterprise.

Patrick Dempsey and Richard Harmon in the “Betrayal” episode (Photo by Christos Kalohoridis © 2026 Fox Media LLC)
Patrick Dempsey in season one episode 5 (Photo by Christos Kalohoridis © 2026 Fox Media LLC)
Michael Imperioli and Richard Harmon in the “Betrayal” episode (Photo by Christos Kalohoridis © 2026 Fox Media LLC)
Michael Imperioli in episode 5 (Photo by Christos Kalohoridis © 2026 Fox Media LLC)

This post was last modified on March 18, 2026 2:27 pm

Rebecca Murray: Journalist covering the entertainment industry for 23+ years, including 13 years as the first writer for About.com's Hollywood Movies site. Member of the Critics Choice Association (Film & TV Branches), Alliance of Women Film Journalists, and Past President of the San Diego Film Critics Society.
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