Penny Dreadful (Season 4)

Penny Dreadful has its fourth season coming to HBO as an English television series based off multiple horror characters, which are, in title, based on the novels with the same name.
==Plot==
Sirens want to bring darkness over London, England. They have a kiss of death and where sex is power.
==Cast==
*Uncasted as Anna Slater
*Uncasted as "Mother" Mary