Key Metrics
Episodes
120
In catalog
Apple Rating
4.2 / 5
781 Apple ratings
Cadence
Weekly
~every 7 days
Avg Length
35m
Per episode
Latest
May 08, 2026
Active
About the Show
Undertow is Realm’s showcase of original horror stories. Hosted by audio horror pioneer and creator Fred Greenhalgh, each season presents a spooky standalone series, so you can dive in anytime... if you dare!
Current Season: Familiar Haunts
From haunted houses to remote islands, late night radio transmissions to witchcraft, these character-forward stories reveal how the past is never truly gone, and humanity may be the most ruthless monster of them all.
Craving More Frights? Explore Past Seasons:
Season 1: Simpson Falls - A reporter awakens malevolent forces in his haunted hometown.
Season 2: Blood Forest - Every 20 years, werewolves descend for a night of horror. Starring Jack Falahee.
Season 3: Dark Tome - A teen unleashes a terrifying story from a spooky bookshop.
Season 4: The Well - Family secrets resurface, setting loose horror from an old well.
Season 5: The Pulse - A meteorite awakens animalistic instincts in a group of treasure hunters.
Season 6: The Sisters - True events inspire a chilling tale of occult & possession. Starring Mae Whitman.
Season 7: Last Call - A hustler gambles for his life against the Grim Reaper.
Season 8: Narcosis - A rescue dive turns deadly beneath the waves.
Season 9: The Harrowing - A barbaric crime heralds the rise of an ancient evil.
Season 10: Hovering - A police officer is pulled into unimaginable circumstances when he starts investigating calls about an object in the sky.
Season 11: Trio of Nightmares - Three bone-chilling novellas from Maine writers Chris Bernier, Katherine Silva, and Morgan Sylvia.
Binge Ad-Free & Early! Subscribe at realm.fm.
Partnership & Audience Signals
Runs Sponsorships
Ads or sponsor reads already detected
Guest Interviews
Regularly hosts outside guests
Established Catalog
120 episodes — long track record
Production & Distribution
Active Since
Jan 13, 2022
Consistency
1%
Format
Serial
Hosting
rss.pdrl.fm
Episodes
Transcript
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Profile compiled from public podcast metadata · Last refreshed June 15, 2026