Daphne Du Maurier wrote the books that Hitchcock based Rebecca and The Birds, as well as this, his last British movie. Those two are way better, trust me.
Mary Yellan (Maureen O’Hara), with her Aunt Patience (Marie Ney) and Uncle Joss (Leslie Banks), works at the Jamaica Inn, which kind of does what Antonio Bay did to ships full of lepers: lure them to the rocks, shipwreck them and take whatever they have. Sir Humphrey Pengallan (Charles Laughton) is the one making it happen, and Mary soon learns that her family is involved. Only lawman Jem Trehearne (Robert Newton) can help.
This is an entire movie of Laughton mugging and being out of control. If you like that, good news! Everyone else is in a different film, a more serious one! It looks great, though. The ships are gorgeous and, well, O’Hara is beautiful.
Hitchcock said he felt caught between Laughton and the actor’s business partners; he stated that he didn’t direct this movie as referee, but as a director. Laughton also asked to be filmed only in close-ups, as he had not yet learned how his character should walk. Ten days into filming, he started to waltz.
You can watch this on Tubi.