Earth girl Mia, after catching her ex-boyfriend cheating with her stepsister, drowns her sorrows drinking at a bar — and unexpectedly flash-marries a mysterious, handsome stranger named Kyrox. Kyrox's surface identity is the billionaire president of Aegis Group, but in truth he is an alien commander from the planet Volcaris, who regards Mia as the sole observational specimen for his "human reproduction research." After the wedding, Kyrox not only gives Mia extreme physical pleasure (accompanied by hidden tentacles and alien organs), but with blunt, brutal alien logic ruthlessly suppresses every scumbag, vicious stepmother, and sleazy relative who ever bullied Mia, granting her absolute security. However, as shadows appear in the bathroom, marks of restraint show on her body, and an underwater rescue unfolds, Mia gradually discovers Kyrox's terrifying true form — and, goaded by the hostile alien Zane, grows afraid of Kyrox and tries to flee.
