Two strangers witness a mysterious natural phenomenon that reawaken their senses and draws their fractured lives together.

A year after her mother's death, Hannah resumes her training at one of the country's top teaching hospitals. She is soon terrified by strange visions and the threatening behaviour of her ex-boyfriend and star surgeon Nick and wonders if she has come back too soon. But beneath the hospital's reputation of medical excellence she discovers a secret network of dangerous experiments pushing back the boundaries of science.

New parent Ellie endeavors to find some semblance of the woman she once was and the relationship she used to have with her partner Nick, but as each of her attempts are thwarted she is led to an act of transgression that cannot be ignored.

Two childhood sweethearts return to the rural nowhere of their haunted youth to rebuild their lives before they lose their child forever.

DC Davies investigates the murder of a limousine driver who is found in his limo, his neck was slashed with a broken bottle. The investigation focuses on his previous evening's customers but it appears the driver also had secrets. He'd been living in Uruguay until a few months before and apparently had undergone extensive plastic surgery. The case takes a decisive turn when the victim is identified as a former London cabbie who disappeared after a passenger left a case with 2 million pounds in his cab.