BBC Radio 7
1 Episode

The Cycle, written by John Connolly and read by Michelle Gomez.

On her way home from work on an almost deserted train, a young woman starts to suffer pains that we are led to believe indicate her period is imminent. When two troublemaking youths board the train and there is a subsequent delay, the boys' unwanted attention, the woman's increasing pain and the effect of the full moon result in the demise of her tormentors by unexpected means...