When the search for Maddie's killer puts Simon in real jeopardy and exposes Maddie's connection to the living world, Maddie must navigate Split River High's spooky spectral underbelly - first alone, and then with the help of her fellow ghosts.

The spirits enlist Dawn to help Maddie recall her last living moments which takes a heartbreaking turn. Nicole desperately tries to keep a secret from being revealed. As the spirits begin to ask more questions, an unexpected turn of events takes place within their own.