Feste was born and raised in Palos Verdes,[2] California. She has a sister. Feste attended UCLA.[3] When her parents divorced, she spent summers at her father's in Texas. She earned a master's degree in Creative Writing and Screenwriting at the University of Texas at Austin and then studied Producing at the American Film Institute,[4] from where she graduated in 2003.[5] She worked as a nanny, waited tables and tutored to pay for her tuition.[4][6] Following her graduation, she worked as an assistant at the Creative Artists Agency.[6] She is married to producer Brian Kavanaugh-Jones.[7]
Also in 2009, Feste was hired to write a screenplay based on the novel You're Not You by Michelle Wildgen.[13] Filming took place in December 2012. The film was set for release in 2013.[14]
In May 2011, Feste was announced to direct an adaptation of Carolyn Turgeon's novel Mermaid: A Twist on the Classic Tale.[15] The project is still in development.[16] She directed the romance film Endless Love, a remake of the 1981 film.[17] The film was released in February 2014.[18] Feste next directed Boundaries starring Vera Farmiga and Christopher Plummer for Stage 6 Films, to be released on June 22, 2018.[19]
Feste wrote and directed the horror film Run Sweetheart Run, which premiered in January 2020 at the Sundance Film Festival. It was set to show at additional festivals and theatrically, but the COVID-19 pandemic stopped further release, at which point Amazon picked up streaming distribution.[20] During the pandemic, Feste created, wrote, and directed the podcast Dirty Diana over Zoom.[20] The podcast was picked up by Amazon for a streaming series adaptation with Feste returning to direct and co-write with Jen Besser again.[21] The pair also signed a deal to adapt the story into a trilogy of novels.[22]