

A mysterious legend surrounds the old Carre Castle. A ghost, the Green Archer, is said to terrorize the inhabitants. American millionaire Abel Bellamy isn't fazed by the rumor; he buys the estate and moves in without hesitation. But soon, a man is found dead in Carre Castle—a green arrow sticking out of his back. Naturally, Inspector Featherstone can't explain the murder with a ghost story and decides to conduct his investigation incognito: He takes on the role of the caretaker. At the castle, he meets Bellamy's beautiful niece, Valerie, who harbors a mysterious suspicion: She believes the lord of the castle is holding Valerie's missing mother captive...