The Kaley Cuoco-led HBO Max thriller "is refreshingly goofy, but colored with a melancholy that makes it richer than purely escapist trash TV," says Kevin Fallon. "It’s about grief, paranoia, alcoholism, self-sabotage, and the delusion that things are OK. It’s about announcing things like 'what’s wrong with being messy?' and desperately hoping someone will validate you. It’s something of a ghost romance, which is to say it’s kind of trashy and soapy in a silly way, a fragile and sudsy balancing act that Cuoco nails. Comparisons are inevitable to the other recent twisty murder mystery that tickled the zeitgeist, HBO’s The Undoing. So imagine that series, but if Nicole Kidman had downed nips of Tito’s as a coping mechanism instead of going on inexplicable miles-long midnight walks. Oh, and if the show actually knew what it was. It’s a confidence of tone that makes The Flight Attendant work, whereas The Undoing culminated in a social media laughing stock for its ludicrous finale." ALSO: Here are all the terrible decisions Kaley Cuoco's character makes in The Flight Attendant.