Murder by the Sea

Season 9 Episode 4: Britain’s Worst Female Serial Killer

Despite only being trialled and convicted for the death of a single victim, Mary Ann Cotton is often classed as Britain’s worst female serial killer.

Genre:

Reality, Crime, Documentary

Seasons:

10

Episodes:

88

Actor:

Nell Darby

Quality:

HD

Status:

Returning Series

First Air:

2018

IMDb:

6.0