In the heart of Oxford, two mischievous undergraduates, Jack and Charley, find themselves in a predicament when Charley's wealthy aunt from Brazil unexpectedly arrives. Desperate to avoid her disapproval, they enlist the help of their friend Lord Fancourt Babberley, who agrees to impersonate the aunt. However, chaos ensues when the real aunt shows up, leading to a whirlwind of mistaken identities, hilarious misunderstandings, and a series of farcical events that will leave you in stitches....