The treatment of newcomers in the “land of a thousand welcomes” is the subject of writer-director Ciaran O’Connor’s remarkable debut feature. Ruth Negga is a revelation as Taiwo, an illegal immigrant who is brought to Ireland by human traffickers. Forced into prostitution in order to survive, she finds an unlikely friend in Kelly (Karl Sheils), a small time hood who tries to protect her from Dublin’s horrifying underworld. Visually stunning and tautly told, Capital Letters is both an unflinching examination of Ireland’s exploitation of its immigrants as well as a tender and emotionally compelling love story.