Set in their Dublin hometown, Anna, Rachel, Maggie, Claire and Helen navigate the peaks and troughs of their late 20s and 30s. This is a sisterhood full of in-jokes, hand-me-down resentments and more than a few old wounds. But their DNA, history and shared love of power ballads keep the Walsh sisters together in the face of heartbreak, grief, addiction and parenthood.

After the brutal murder of her twin sister, Darcy goes after those responsible by using haunted items as her tools for revenge.