The Outsider is HBO‘s newest drama series. It debuted Sunday, Jan. 12, with back-to-back episodes, and will run single episodes on subsequent Sunday nights until March 8. The Outsider is based on the 2018 Stephen King novel of the same name and stars Ben Mendelsohn, Cynthia Erivo, and Jason Bateman in the leading roles.

Here’s what you need to know to dive into this terrifying world where a horrific crime tears a town apart.

The Stephen King Novel