Medical student Abigail is thrilled to begin her clinical rotation in the dark, restricted psychiatric unit of a prestigious hospital, eager to learn from the brilliant, reclusive specialists on the ward. However, she quickly notices that the heavily sedated patients are harboring deep, systemic fears regarding the night staff and a series of unexplained medical anomalies on the charts. As Abigail tries to investigate the strange occurrences, she finds herself targeted by a calculated campaign of psychological harassment and administrative gaslighting, forcing her to question her own sanity while trying to expose the medical horrors lurking in the dark.