While acclimating to purgatory at Split River High, Maddie becomes determined to solve the mystery of her disappearance; while observing those she left behind, Maddie begins to realize everyone is not as honest and loyal as she once thought.

As she grows close to the spirits in the ghost world, a driven Maddie begins to unravel the events surrounding her death, only to discover someone other than Xavier may have been involved.

With an unexpected suspect possibly involved in her death, Maddie's forced to reveal more about the depth of that relationship, leading to unexpected consequences.

When the search for Maddie's killer puts Simon in jeopardy, Maddie must navigate the school's spooky spectral underbelly alone.

As Homecoming unfolds at Split River, Maddie finds herself divided between accepting her fate in purgatory and a newly hatched plan to crack a new suspect.

Amongst the sparkly lights of Split River's Homecoming Dance, Operation Find Maddie's Killer goes into overdrive leading to surprising revelations.