So, if you’re expecting The Essex Serpent to mimic horror creature features like 1954’s Creature From the Black Lagoon, 2006’s The Host, or, more recently, 2020’s Underwater, you’ll be disappointed.

In fact, it’s not even categorized in the horror or thriller realm; according to IMDb, The Essex Serpent is a drama limited series.

Source: https://www.distractify.com/p/is-the-essex-serpent-horror