This Is the Zodiac Speaking (Season 1)

This Is the Zodiac Speaking (2024) is a true-crime docuseries you can watch online on iFILM. Directed by Phil Lott and Ari Mark, it revisits one of American criminal history's most persistent unsolved cases.

Northern California, late 1960s: a serial killer sent encrypted messages to newspapers, threatened schoolchildren, and was never caught. The prime suspect, Arthur Leigh Allen, died without ever facing charges. A family that spent decades collecting their own evidence now steps forward — clues, testimonies, and documents pointing to one man.

Most Zodiac content rehashes existing case files. This series brings in people who were close to the investigation — including journalist Robert Graysmith, whose reporting shaped the public narrative and whose books David Fincher turned into a 2007 film. Stream This Is the Zodiac Speaking (2024) online on iFILM.