Like a triangle of sadness refracted through the lens of a glass onion, “eat the rich”parables have become played out parasites on the multiplex menu. Emerald Fennell’s curious sophomore outing, Saltburn (C+), is a mid-2000s set vodka stinger of a black comedy imploring viewers to examine the motivations of two Mr. Brightsides, the yearning nebbish Oxford scholarship recipient Oliver portrayed by Barry Keoghan and his half-hearted golden boy aristocrat schoolmate Felix played by Jacob Elordi. Pauper and prince become fast friends against the backdrop of a cruel summer of parties and people as playthings amidst the eccentric dynamic of the film’s titular palatial estate, home of much style and little substance. The characters’ motivations remain murky throughout the proceedings, leaving only two definitive takeaways: that the pulpy puzzle box of a production design is often absolutely divine and that Rosamund Pike is camp genius in her role as the rich family’s oblivious mum, Lady Elspeth Catton, whose blithe asides are bliss. In between MGMT and Arcade Fire needle drops and kinky sequences filled with body fluids rivaling Babylon, the story is feckless when it should be reckless in its drift toward a decadent denouement. Both wily leading men display ample charms but to diminishing returns. Fennell’s folly ultimately swirls and almost drowns in tepid bathwater evocative of the similarly plotted and far better thriller The Talented Mr. Ripley. Swim through this film’s sick lullabies and choke on its alibis at your own risk.