It isn't the first time that identical twins Gillian and Melina Lloyd have switched identities. Melina, the more impetuous twin, proposes that her circumspect sister take her place as a media escort to NASA astronaut and national hero Colonel Christopher "Chief" Heart. Although it's an enticing offer, Gillian declines. Media-savvy Chief turns out to be an easy assignment for Melina. But the following morning, police arrive at Melina's door with the worst possible news: her beloved twin has been murdered, and on the walls, scrawled in blood, are obscenities directed at Gillian, along with insults that indisputably link Chief to the crime.