A jewelry designer must recover stolen diamonds and conceive a child within five days to save her family's legacy. Mary Keefe, a jewelry designer, is reeling from a double betrayal: her boyfriend Conrad has stolen a million dollars in diamonds, and her family's legacy is at stake, requiring her to conceive a child within five days. Her friends devise a plan involving a singles cruise to find a suitable sperm donor, with the first mate appearing as a promising candidate. Meanwhile, John Kajiyama, posing as her neighbor John Wang, is investigating the diamond theft for an insurance company, finding himself increasingly drawn to Mary while maintaining his cover.

The narrative appears to blend romantic suspense with a ticking clock element, focusing on Mary's dual objectives of recovering the stolen jewels and fulfilling a familial obligation. The presence of an undercover investigator adds a layer of intrigue and potential conflict to the developing romantic relationship. The premise suggests a fast-paced plot driven by Mary's urgent personal stakes and John's clandestine investigation. The story likely explores themes of trust, deception, and the complexities of love under pressure.