As an apparent terrorist attack forces a Vancouver hospital into lockdown, something more lethal than the bombs outside begins picking off those trapped inside the ER one by one in this heart-pounding medical thriller.

A bomb detonates during a massive protest in downtown Vancouver, sending a wave of casualties into St. Michael’s Hospital. For ER doctor Kate Bellamy, it’s the beginning of the worst night shift of her career.

Then comes a second threat: The city center is locked down. No one can enter the hospital. No one can leave.

Outside, Kate’s fiancé, homicide detective Gabriel Pereira, joins the hunt for whoever planted the bombs. Inside, Kate faces a deadly mystery of her own. Seemingly healthy staff members are suddenly collapsing from inexplicable cardiac arrests. There’s no obvious connection between them. No clear cause. As Kate races to determine what’s killing them, Gabriel uncovers something just as disturbing about the bombs. And the deadliest threat is already inside the ER.

Blending the urgency and authenticity of emergency medicine with a locked-room mystery and police procedural, Admit No One explores institutional accountability, medical error, betrayal, and the devastating consequences of secrets left buried.