Lost Girls is a 2020 American mystery drama film, directed by Liz Garbus, from a screenplay by Michael Werwie, and based on the book Lost Girls: An Unsolved American Mystery by Robert Kolker. The film revolves around the murders of young female sex workers on the South Shore barrier islands of Long Island, committed by the Long Island serial killer, who remains unidentified.
Lost Girls stars Amy Ryan as real life activist Mari Gilbert, along with Thomasin McKenzie, Lola Kirke, Oona Laurence, Dean Winters, Miriam Shor, Reed Birney, Kevin Corrigan and Gabriel Byrne. It had its world premiere at the Sundance Film Festival on January 28, 2020, and was released on March 13, 2020, by Netflix.
When Mari Gilbert’s daughter disappears, police inaction drives her own investigation into the gated Long Island community where Shannan was last seen. Her search brings attention to over a dozen murdered sex workers.