Marina Carr's Hecuba probes a mother's grief, family secrets unravel in The Beacon and audiences are immersed in 80s LGBT+ Dublin in Faultline Questions of interpretation drive Nancy Harris's teasingly clever new play, The Beacon, for Druid Theatre and Dublin's Gate theatre. When a celebrated painter of abstract canvases, Beiv (Jane Brennan), moves to her late husband's cottage on a West Cork island, she immediately …