Samantha Evans is determined to make a name for herself in the cutthroat world of advertising. Newly hired by a prestigious ad agency, she volunteers to work on location in Mexico City as a personal assistant to the beautiful and driven creative director Katrina Edwards. At first the association seems promising. But Ms. Edwards seems preoccupied in a way that makes Samantha increasingly uneasy. In fact, many in the group seem like they are not being completely open about the project, including David Ayala, the mysterious and moody photographer for whose attention the two women find themselves competing. After several strange accidents and numerous appearances by an unknown man, Samantha discovers the truth: not everyone on the team is in Mexico to create a stellar advertising pitch. When her sleuthing leads to her abduction, she is brought to the pyramids of Teotihuacán and comes face-to-face with the venomous evil of the South American crime boss known as The Serpent. Now Samantha must not only fight for her life, but she must also discover if she can trust the man she's come to love.