The tight-knit Garvey sisters have always looked out for each other. When their brother-in-law winds up dead, his life insurers launch an investigation to prove malicious intent — and set their sights on the sisters, all of whom had ample reason to kill him. In addition to Horgan, the "Bad Sisters” ensemble cast is led by Anne-Marie Duff, Eva Birthistle, Sarah Greene and Eve Hewson as the Garvey sisters. Claes Bang, Brian Gleeson, Daryl McCormack, Assaad Bouab and newcomer Saise Quinn round out the ensemble cast.