The suicide of a Maryland beauty queen leaves her loved ones in shock. But when her sister turns detective, she finds evidence that suggests she has not died by her own hand.

A mother of three is shot dead, and investigators soon uncover that she is in the midst of a multi-million dollar divorce.

At Delmenhorst Hospital, Germany, administrators notice death rates in their intensive care unit have risen sharply. Suspicions fall on Nurse Niels Hogel who turns out to be Germany's most prolific murderer since the Second World War.