After messing up at the lab, research scientist Cath is unexpectedly invited along on a late night boat trip with ice queen rival Emily and Jamie, the professor's flirtatious son. But Cath soon finds she's out of her depth when the group discover a body in the river... that isn't quite dead. As Cath struggles to keep control of a rapidly escalating nightmare, she unravels a terrifying secret that threatens not only her career, but her chances of survival. Set at Cambridge University and filmed predominantly in Grantchester Meadows (of Pink Floyd fame), this eerie horror-thriller delves into the dark, cutthroat world of the pharmaceutical drugs race, posing the question: just what goes on in those secretive Cambridge labs?