Night of the Eagle was the second film version of Fritz Leiber Jr.'s Conjure Wife (the first was Weird Woman, perhaps the best of Universal's low-budget "Inner Sanctum" series of the 1940s). The film's title was possibly meant to invoke memories of the earlier Night of the Demon (58); both films involve a rational scientist (in the case of Night of the Eagle, Peter Wyngarde) forced to accept the existence of the supernatural. All evidence points to the conclusion that the scientist's American wife Janet Blair is the reincarnation of a witch, and a practitioner of voodoo. The actual villain is supposed to be a mystery, though the identity was made clear in the Leiber original and in both other film versions of Conjure Wife (there was a 1980 parody version titled Witches Brew). The supernatural aspect of Night of the Eagle is convincingly handled, including a knockout sequence with a wild eagle rampaging through the scientist's tranquil study. Adapted by Twilight Zone stalwarts Richard Matheson and Charles Beaumont, the British-made Night of the Eagle was released in the US as Burn, Witch, Burn.