All Souls - Season 1 Episode 5 Running Scared

Experiments on five female athletes; Jolene Martin, Sierra Wilson, diver Anna Markham, volleyballer Belinda Karch, and runner Abigail "Gabby" Maine have been undergoing experiments by Dr. Henry Lohman at the All Souls Sports Medicine Clinic. The first three are dead, and in trying to help Gabby the doctors find out that Belinda has apparently aged from twenty to over ninety as a side effect of the experiment. It is revealed that all five are Dr. Lohman's "daughters" via a genetic breeding experiment, but that the deaths are from an assistant giving the girls experimental DNA treatments without Lohman's knowledge.