Katherine Jessica Chandler, an up-and-coming jewel cutter, has been handed the opportunity of a lifetime. Arthur McCloud, one of the foremost collectors of gemstones in the world, commissions her to cut the Seven Sins - seven extraordinarily rare sapphires worth millions.
Kate asks Lee, the one man she knows she could trust, to transport the gems from McCloud's offices in Scottsdale, Arizona, to her studio in Sanibel Island, Florida, and back again. Kate is sure this job will do wonders for her reputation in the gem world - until a murderer strikes and the Seven Sins disappear.
Whoever was behind the murder and theft will stop at nothing to make his escape, and unless Kate can discover the killer's identity, she will lose not only her career, but her life as well.