Monstrous

After an American family moves to an old country manor in rural England, one of the daughters is tormented by the spirit of the owner's long lost daughter, who mysteriously disappeared 30 years ago during a solar eclipse.

A family moves into a large old mansion in the countryside which seems to have a mysterious and sinister power over its new residents.

Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampire assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is the mysterious Count Mora or his daughter. Receiving little help from the law, Professor Zelen, an expert in the occult, is called in to assist with their investigation.

A woman recovering from a nervous breakdown tries to convince her husband and and the local London police that she has witnessed a murder in the abandoned house next door.