For lesbians in Provincetown, seductive Sable is more than just a bedroom voice on late-night radio. Through her talk show, Nightlight, she is a fun, anonymous friend and confidante, until one mysterious caller attracts her attention. Behind Sable's "mask," Murphy Callahan allows herself to enjoy the no-strings radio relationship—she's mourned the death of her partner for three years—and ignores the growing attachment as their very public conversations push permissible limits.

But when local tradeswoman Riley Burke enters her life, Murphy faces a difficult choice: continue the safe, "night voice" fantasy or risk the reality of falling in love. If only she could have both...