about a 10-year-old boy who, "upon bearing witness to his father's murder, is rendered mute". Prepon stated she plans on making Abide with Me into a feature film. 2011–present In early 2011, Prepon guest-starred in an episode of the ABC police procedural drama Castle as an actress studying for the role of Nikki Heat, a character created by Nathan Fillion's title character. Prepon had been working on a web series, , which she directed and edited, starring her then-boyfriend Scott Michael Foster. They had sold the series to Comedy Central. In February 2011, she was cast as the title character Chelsea Newman on the NBC sitcom Are You There, Chelsea?, based on Chelsea Handler's 2008 book Are You There, Vodka? It's Me, Chelsea. NBC premiered the show on January 11, 2012, and cancelled it on May 11, 2012. She guest-starred in the TBS sitcom Men at Work. In mid-2012, Prepon signed on to co-star with Taylor Schilling in the Netflix original comedy-drama series Orange Is the New Black, based on Piper Kerman's 2010 memoir Orange Is the New Black: My Year in a Women's Prison. She was cast as Alex Vause, a former drug importer and girlfriend of Piper Chapman (Schilling). The series premiered on July 11, 2013. Prepon was a regular in the first season, but appeared in only four of the 13 episodes in the second season. She returned as a series regular in the third season. In 2016, Prepon and nutritionist Elizabeth Troy co-wrote The Stash Plan, a wellness book that draws on Prepon's experiences eating organic foods since she was a child, and her struggles with weight, low energy, and digestive issues. The book debuted at #10 under "Advice, How-To & Miscellaneous" on The New York Times Best Seller list. Since publishing The Stash Plan, Prepon has expanded her cooking career, launching a line of kitchenware products called PrepOn Kitchen and regularly posting instructional videos online. In 2016, Prepon appeared in the psychological thriller The Girl on the Train, based on Paula Hawkins' novel of the same name. In 2017, she played Charlotte opposite Sam Elliott in The Hero. Prepon directed the tenth episode of Orange Is the New Blacks fifth season, titled "The Reverse Midas Touch". On April 30, 2022, it was announced that Prepon would have a guest appearance in the follow-up sitcom, That '90s Show. That 90's Show debuted January 19, 2023 on