An intense, mesmerizsing Sundance favorite, The Sound of My Voice unfolds with eerie tension as a young couple infiltrates a strange cult.

The story follows L.A. documentary filmmakers Peter (Christopher Denham) and Lorna (Nicole Vicius), as they follow Maggie (Brit Marling), a stunningly beautiful young woman who claims to be a time traveler from the year 2054. Her goal: to recruit and train an army for a coming civil war.

In attempting to portray the cult as a fraud, Peter and Lorna submit to the group’s bizarre demands—being bound, blindfolded, showered and led to a basement to meet Maggie, Klaus (Richard Wharton), the cult’s long haied avuncular leader, and several other followers.

Director/co-writer Zal Batmanglij shot the film for less that $500,000 and indicated that he and Marling have already outlined a three-film series–with plans to shoot the final two films as a trilogy, or a TV or internet series. He noted that taking the project online would enable viewers to view Sound of My Voice on laptops, allowing for a higher level of intimacy.

Marling is no stranger to Sundance. She wrote, produced and starred in a second Sundance 2011 sci-fi film, Another Earth, a complex, cerebral story about a girl who finds forgiveness on a new planet.

A graduate of economics from Georgetown university, Marling turned down a job with Goldman Sachs to pursue an artistic career. After being offered nothing but “cute blonde roles in horror movies,” she began to write and penned Another Earth and Sound of My Voice. Both offer the actress strong, substantial character driven roles.

The Sound of My Voice will be in theatres April 27th.See the 12-minute extended trailer.