Milo is an out of work gay actor with a tendency towards depression (like his sister and their late father), and as he settles in with Maggie and her new husband Lance, we see how he generates those depressive tendencies and eventually learn the traumas they're stemmed from (it partially involves an inappropriate past relationship with a former teacher, played by Modern Family's Ty Burrell in a dramatic turn). The same goes for Maggie, whose seemingly perfect life masks an equally disturbed pathology, as she cannot make herself be happy with the "puppy dog" nice guy Lance (played with welcome and unexpectedly subtle shading by Luke Wilson) and is continuously drawn into affair after affair. The dark past they share haunts their present lives, and this could be some dangerously depressing material as a movie, but Wiig and Hader pull off the dramatic moods as well as the easygoing interplay between their characters with zest and incredible appeal. It's very impressive to see these two comedy vets vacillate between the funny and the dark, and Hader especially is quite the revelation. This character fits him like a glove and allows him to be at turns sad, funny, and self-absorbed, yet remain inherently likable and so charismatic that you could watch him all day and believe everything he does and says, no matter that some of the situations are heavy-handed or dialogue campy. He always feels like a real person, not simply a character on a page.
The scenes between the two siblings make this film worthwhile, and luckily, that's most of the movie. Whether they're cracking each other up, confessing their darkest secrets, or viciously insulting each other in the place they know it'll hurt the most (as often only family can do), Hader and Wiig are dynamite. As for the film overall, there are some interludes that feel straight out of family indie cliche (an awkward dinner with Mom, a ridiculously quirky neighbor, some symbolic goldfish- I get really annoyed by symbolic objects and/or animals), and there's more than a little predictability in the script (you can always tell when two people are going to fight, then apologize, then fight for real and this time it's serious, etc.). But when the actors are this good and this watchable, you tend not to care so much as you simply sit back and enjoy watching them, even during the more formula driven aspects of the story, which is from writer-director Craig Johnson. And we're thankful for the buddies that SNL produces, because chemistry this effortless is a rare and wonderful thing, and it can turn a movie that might otherwise be forgettable into a genuinely affecting experience.
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