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 and Meredith Averill, Locke and Key is a coming-of-age mystery about love, loss, and the unshakable bonds that define family. Written by Netflix
So, ok, I haven't finished it yet. It's more or less interesting, but it has some moments just heavily stupid, like the writer thought: it's time to lunch, so it must be ok with this stupid solution to the plot. It's a shame. Episode 7, the one I just saw, was more than enough. Sorry. What a pity and a waste of time, money and work.