Famed journalist Jean Duprey (Pierre Brice) and his wife receive a letter from an old friend, Prince Guilluame St. Lambert, imploring them to come to his castle at once. The Prince fears he's dying from a curse placed on his family three centuries before but his beautiful young wife, Rita (Angela De Leo) is convinced he's merely losing his mind. St. Lambert tells Duprey he's found out something horrible in the library and when the journalist investigates, he discovers one of his friend's ancestors had a beautiful young woman burned at the stake back in 1650 and insanity and death have plagued every generation since. The terrified Prince dies in his sleep and is interred in the family crypt but soon after, the body of a young woman is found near the castle drained of blood. The police ask Duprey to stay on and help solve the crime as his wife, who's been begging to leave, falls under a strange spell. br> Despite the low budget, there's some good Gothic atmosphere with the gloomy, candelabra-lit castle providing a perfect setting with plenty of armor in the hallways and windstorms that billow the draperies all night. It's revealed early on that the Prince's haughty wife, Rita (a big-haired Cynthia "Beyond The Valley Of The Dolls" Myers clone) is the witch and she sacrifices her victims during Satanic rituals by raking her nails down their breasts. There's no graphic gore but a bit of nudity and lesbian overtones help compensate and, at the end of the day, NIGHT is enjoyable, juvenile nonsense that doesn't overstay its welcome. Undiscriminating Italian Horror hounds will probably appreciate the effort put forth provided they don't expect too much.