Zareh was born in Fargo, North Dakota into a family of musicians and grew up in Tehran, London, Frankfurt, Paris and New York. At the age of four he switched plans from being an astronaut to making movies after watching "The Brides of Dracula" on TV in Iran. Following his graduation from NYU film school he began his directing career amidst the ruins of the USSR, drawn to stories set in the aftermath of genocide and dictatorship.

Over the years he’s pursued his obsessions with esotericism, ancient life-ways and forgotten histories through short and long-form films. His acclaimed "Enemy of the People", about life during the Stalin purges, was broadcast on PBS and recommended by National Geographic as one of the three most important movies about Armenia, along with Sergei Parajanov’s "The Color of Pomegranates" and Atom Egoyan’s "Ararat."

Zareh’s work screens regularly at festivals and has won numerous awards, including the Grand Prix at the 2019 Kinoskop Analog Experimental Film Festival in Belgrade, the Theremin Award for Best Sound Design at the 2019 Hermetic International Film Festival in Venice (where he won Best Foreign Documentary in 2018), Best Experimental Film at the 2021 Caligari Festival Internacional de Cine de Terror in Valencia, Best Visionary Short at the 2021 Psychedelic Film & Music Festival in NYC, the Mercure Award for Best Picture at the Hermetic International Film Festival in 2021, Best Experimental Film at Hastings Rocks Film Festival in 2022, and Best Archaeology Short at Palenque International Film Festival in 2023.

His obsessions go beyond the frame: "The Enigma of Space", a panoramic study of the mysterious ‘dragon-stones’ of the South Caucasus, was recently published by the Institute of Archaeology & Ethnography in Yerevan, Armenia.

Zareh currently lives in Denmark, where he teaches Directing at the European Film College.