Tesla Martin is drifting pleasantly through life, slinging lattes at Morningstar Mocha, enjoying the ebb and flow of caffeine-starved customers, devoted to her cadre of regulars. But none of the bottomless-cup crowd compares with Meredith, a charismatic force of nature who can coax intimate tales from even the shyest of Morningstar's clientele.

Caught in Meredith's sensual, irresistible orbit, inexpressibly flattered by the siren's attention, Tesla shares long-buried chapters of her life, holding nothing back. Nothing Meredith proposes seems impossible—not even Tesla sleeping with Meredith's husband, Charlie, while she looks on. After all, it's all in fun, isn't it?

In a heartbeat, vulnerable Tesla is swept into a spectacular love triangle. Together, gentle, grounded Charlie and sparkling, maddening Meredith are everything Tesla has ever needed, wanted, or dreamed of, even if no one else on earth understands. They're three against the world.

But soon one of the vertices begins pulling away until only two points remain—and the space between them gapes with confusion, with grief and with possibility….