Seven women stand in shock in a seedy hotel room; a man's severed head sits in the centre of the floor. Each of the women - the wife, the teenager, the ex, the journalist, the colleague, the friend, and the woman who raised him - has a very good reason to have done it, yet each swears she didn't. In order to protect each other, they must figure out who did.

Against the ticking clock of a murder investigation, each woman's secret is brought to light as the connections between them converge to reveal a killer.

An addictive feminist thriller about love, loyalty, and manipulation, Speak of the Devil explores the roles in which women are cast in the lives of terrible men . . . and the fallout when they refuse to stay silent for one moment longer