The show masterfully uses the "unreliable living." We see the living world through Maddie’s voyeuristic eyes as she watches her best friend (the neurotic, brilliant Simon) and her mother (a recovering alcoholic played with raw agony by Maria Dizzia) fall apart. Simon is the only living person who can see her, a twist that adds a brilliant layer of tension. Their conversations happen in crowded hallways where no one else can hear them, creating a sense of claustrophobic intimacy.

We learn that Maddie wasn't murdered.

Whether you’re a ghost or a living person, everyone is just trying to figure out where they belong. And in Split River High, that’s the most terrifying mystery of all.

The season follows a "whodunnit" structure where Maddie and Simon investigate various suspects from her life: Norse Notes Xavier Baxter:

The season ends on a cliffhanger that feels less like a tease and more like a punch to the gut. We need Season 2 not just to solve a murder, but to watch a girl try to steal her life back from a ghost who doesn't want to die.

The core of the show is a mystery. Maddie has no memory of how she died and must navigate the "Afterlife Support Group"—a collection of spirits from various decades who also died on school grounds.

While navigating purgatory, Maddie joins a group of other students who died on campus across different decades:

As Simon and Maddie dig deeper, they uncover secrets that make almost everyone a suspect: