Award-winning Big Bang Theory star Kaley Cuoco encounters unexpected turbulence in an eight-part dark comedy based on Chris Bohjalian's best-selling 2018 novel, which takes to the air on Sky One this week. Hard-drinking flight attendant Cassie Bowden (Cuoco) often mixes business and pleasure by sleeping with passengers including Alex Sokolov (Michiel Huisman), who flirts with her on a flight to Bangkok. The strangers party in Thailand's capital and when Cassie wakes the next morning with a hangover, she is horrified to find Alex in bed next to her with his throat slit. Unable to piece together the events of the night before, Cassie panics and cleans up the crime scene to avoid implicating herself. She flies back to New York with the rest of the cabin crew where two tenacious FBI agents, Hammond (Merle Dandridge) and White (Nolan Gerard Funk), are waiting to question her. Their interrogation sparks fragmented memories and Cassie slowly pieces together Alex's bloodthirsty demise.