Broadcast Outage: We're investigating a broadcast transmission failure affecting the San Luis Valley from Antonito in the south to Salida in the north. We're working to resolve this issue. You can stream our live broadcast HERE or via the RMPBS+ App.

Stream live and on-demand content now on our new app:
RMPBS+

Help tell more stories in 2026 - make a year-end gift!

Give Now
Agatha Christie's Poirot show's poster
DramaGB
TV-PG
Agatha Christie's Poirot

The Third Girl

David Suchet stars as Agatha Christie's beloved detective Hercule Poirot, who pits his wits against crime and injustice in this collection of murder mysteries.

RMPBS Passport

Please log in to your PBS Passport account to watch this video

Become a Member

The Third Girl

Season 11 Episode 3 | 93m 6s | CC

When the young heiress Norma Restarick tells Hercule Poirot that she may have killed someone, it seems she’s telling the truth--her childhood nanny is soon found dead and those close to Norma fear for her sanity. With crime novelist Ariadne Oliver, Poirot uncovers a conspiracy rooted in a tragic family history and finally has to take life and death into his own hands to reveal the shocking truth.

Subscribe to Our Newsletters

Get trusted Colorado stories, programs, and events from Rocky Mountain PBS straight to your inbox.

Set Your Preferences >