The official synopsis for Oddity reads, “When Dani (Carolyn Bracken) is brutally murdered at the remote country house that she and her husband Ted (Gwilym Lee) are renovating, everyone suspects a patient from the local mental health institution, where Ted is a doctor. However, soon after the tragic killing, the suspect is found dead.
A year later, Dani’s blind twin sister Darcy (Bracken), a self-proclaimed psychic and collector of cursed items, pays an unexpected visit to Ted and his new girlfriend, Yana (Caroline Menton). Convinced that there was more to her sister's murder than people know, Darcy has brought with her the most dangerous items from her cursed collection to help her exact revenge.”