Helstrom (Season 1)

Helstrom (2020) is an American supernatural thriller series you can watch online on iFILM. Tom Austen plays Daimon Helstrom, a university ethics professor who hunts evil on the side, and Sydney Lemmon is his sister Ana, an antiquities dealer with a very different approach to the family business. What they share is a father — a serial killer of extraordinary and unexplained power.

The show's tension comes less from monster-of-the-week plotting and more from the siblings themselves: Daimon and Ana have spent years apart, built separate lives, and developed a mutual wariness that makes every scene between them loaded. Elizabeth Marvel adds another layer as their institutionalized mother, whose silences carry more weight than most characters' dialogue. Stream all episodes of Helstrom (2020) online on iFILM.