There are several productions with the title "Blood," so without a director or year it is difficult to identify which one is meant. The most widely known is the 2018 Irish thriller television film in which a doctor returns to her rural family home following her mother's sudden death and begins to suspect that her taciturn father may be responsible. As she digs deeper into the circumstances, long-buried family tensions surface and the investigation forces her to question how well she truly knows those closest to her.