Season 1

In Victorian England, Louisa's family moves to a country home, where she is reunited with her beloved older brother, Antony. In the 1980s, Allie and her family vacation in the country, where they end up renting a dilapidated house.

Louisa's mother brings a neighbor girl to keep Louisa company, but Louisa takes an instant dislike to her. Not so Louisa's brother, who is quite smitten with the girl, much to his sister's chagrin. In the present day, Allie has deja vu.

Allie explores the house while her parents attempt to research the history of the house. In the 18th Century, Louisa becomes increasingly jealous of Antony's attention to Allegra.

Lousia's jealousy of her brother's affection for Allegra leads her to a drastic act. but the plan backfires in horrific fashion, leaving Louisa devastated and lashing out. in the 1980s, research makes a breakthrough.

Louisa begs her brother not to leave her after she dismisses Allegra as the love triangle reaches its climax. Allie admits that she believes the manor house is haunted. After no one believes her, Allie sees Allegra's ghost on the path.

Allie searches for the answer in the cemetery while her parents nervously search for her in the mansion. In the past, Louisa comes up with a devious plan to get rid of her rival for her brother's affections once and for all.