Where to watch My Sister's Serial Killer Boyfriend (2023) in the UK
My Sister's Serial Killer Boyfriend (2023) is not currently listed on any UK streaming, rental, or purchase service. Last verified on 17 May 2026 by ScreenSearch.
Maddie, a local reporter investigating a series of killings targeting similar looking women is caught off guard when her younger sister Olivia, is attacked in her own home. Urging on the side of caution, Maddie suggests they take a self-defense course. When Olivia starts to fall for their instructor, Maddie becomes skeptical when he refuses to reveal anything about himself, and tries to intervene before the relationship turns into a deadly obsession.
Streaming options in the United Kingdom
Updated daily from The Movie Database. Outbound links open the provider directly.
This may be because: (a) the title hasn't been released in the UK yet, (b) it's on physical media only, or (c) the licence has temporarily lapsed. Streaming availability changes frequently — check back daily.
Last verified: — sourced from The Movie Database. Machine-readable: Markdown · JSON.
Cast & crew
Top-billed cast in My Sister's Serial Killer Boyfriend.
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Brianna CohenMaddie -
Rib HillisHaden -
Revell CarpenterOlivia -
Don JeanesJack Houston -
Christian Blaque MeierKyle -
Steve OlsonTodd -
Denise HewittRachel Jones -
Erica J. OrrDetective Willet
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My Sister's Serial Killer Boyfriend — frequently asked questions
Where can I watch My Sister's Serial Killer Boyfriend in the UK?
My Sister's Serial Killer Boyfriend (2023) is not currently listed by any UK streaming, rental, or purchase service in our daily-updated TMDB feed. It may be on physical media, an aggregator, or pending a UK release. Check back later — availability changes frequently.
Is My Sister's Serial Killer Boyfriend on Netflix, Disney+ or Amazon Prime Video in the UK?
My Sister's Serial Killer Boyfriend is not currently included with any major UK subscription service. It may still be available to rent or buy.
How accurate is this film's availability data?
Availability is sourced from The Movie Database (TMDB), which in turn pulls from JustWatch. Listings are refreshed daily. For purchase decisions, the provider's own site is the source of truth.
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