Season One of Netflix's Locke & Key was released on February 7, 2020. It consists of ten episodes ranging from forty to fifty-six minutes.
The season centers around the mysteries of the ancestral home of the Locke Family located in Matheson, Massachusetts. Three siblings try to connect certain elements of the mystery to their father's death.
"After their father is murdered under mysterious circumstances, the three Locke siblings and their mother move into their ancestral home, Keyhouse, which they discover is full of magical keys that may be connected to their father’s death. As the Locke children explore the different keys and their unique powers, a mysterious demon awakens — and will stop at nothing to steal them. From Carlton Cuse (Lost, Bates Motel) and Meredith Averill (The Haunting of Hill House), the series is a coming-of-age mystery about love, loss, and the unshakable bonds that define family."
The series received mixed to positive reviews from critics, with the score, set design, and visual effects being singled out as highlights of the show. Critics mainly praised the show's handling of themes relating to loss and trauma, as well as its use of horror genre elements, while criticizing the use of teen drama and romance subplots to drag out the story. The performances of Jackson Robert Scott and Laysla De Oliveira received particular praise.