Joanne Froggatt stars in "Masterpiece: Dark Angel" on May 21
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Joanne Froggatt, who stole the hearts of millions of viewers as Anna, the loving and resilient lady’s maid on Downton Abbey, stars in a totally different role in this spine-tingling drama. Dispensing death from the spout of a warm teapot, Froggatt plays the notorious Victorian poisoner Mary Ann Cotton, Britain’s first female serial killer.
Tune in for Masterpiece: Dark Angel on Sunday, May 21 at 8:00 p.m. on Nine PBS.
Dark Angel - Masterpiece Dark Angel: Coming May 21 Watch the true story of Mary Ann Cotton, the infamous Victorian serial killer.