A vampire, a psychic and a werewolf walk into a bar on Alpha Prime... (from 1,001 Stellar Jokes)

Thomas and Rick have a stable partnership, exploring the stars and skirting the law. Vampire and companion for decades, they fill their downtime aboard their ship the Sleepwalker with sex and banter. Lately they've felt that something, or someone, is missing in their relationship. Rick believes it's a woman, one destined to complete them and become their perfect long-term third.

Harriet isn't content with her life as a bank repo officer. She'd really like a desk job in Accounting, but corporate assignments are limited for a werewolf with unusual talents. Getting down and dirty with her marks isn't her practice, but she has no idea what sensual delights the latest deadbeats she's sent to collar have in mind.

From the moment they meet, the trio is ensnared in a web of desire, heat and danger as they untangle a conspiracy and race to head off unthinkable disaster.