One Killer Question poster
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One Killer Question

6.620222 seasonsTV-14TV SeriesTalk

The Only Murders in the Building aftershow that isn't afraid to tackle the hard question. One question. That's it. Featuring host Ali Stroker, the show's actors, a slew of celebrity superfans and one big murder to solve it just might be…

Where to watch

Not available in Canada
Streaming in 1 other country

One Killer Question isn't on any streaming service in Canada right now, but it's available in United States. Streaming rights are licensed per country.

Seasons & Episodes

E1
Ben died. Do we feel bad about that?
Aug 8, 2023 7.0
E2
Should Mabel be investigating right now?
Aug 8, 2023 8.0
E3
Does T-obert stand for Trouble?
Aug 15, 2023 6.0
E4
What Happened in the White Room?
Aug 22, 2023 6.0
E5
Is Our Trio in Love With Murder?
Aug 29, 2023 6.0
E6
Who’s the most haunted?
Sep 5, 2023
E7
Who does Mabel belong with?
Sep 12, 2023
E8
Is Oliver’s Heart Messing With His Head?
Sep 19, 2023 4.0
E9
We Were Kinda Unfair to Ben?
Sep 26, 2023 7.0
E10
For the Sake of a Child?
Oct 3, 2023

Cast

Michael Cyril Creighton
Michael Cyril Creighton
Self - Host

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One Killer Question — streaming FAQ

Which OTT platform streams One Killer Question?

One Killer Question isn't on any streaming service in Canada yet, but it's available in United States. Streaming rights differ by country — switch your country in the header to see where.

Is One Killer Question on Netflix?

No, One Killer Question is not on Netflix in Canada as of August 2026.

Is One Killer Question on Amazon Prime Video?

No, One Killer Question isn't on Amazon Prime Video in Canada right now.

Where can I watch One Killer Question for free?

One Killer Question isn't streaming in Canada yet, so there's no way to watch it free at the moment.

How many seasons are in One Killer Question?

One Killer Question has 2 seasons in total (20 episodes). The series concluded in 2023.

Are all episodes of One Killer Question out yet?

Yes — all 20 episodes across 2 seasons of One Killer Question are out and available to stream.

Is there a Season 3 of One Killer Question?

No — One Killer Question ended after 2 seasons, so there is no Season 3.