 The telepathy between identical twins: conventional Caroline lives with her dad and is engaged; Lisa is hard-drinking, devil-may-care, living in London as a high-class call girl. Caroline has horrid dreams of Lisa dying, so she flies to London to help. To find out what befell Lisa, Caroline submerges herself in Lisa s dangerous milieu, seeking help from an East Indian cabby who loved Lisa, and continuing to have dreams and visions. Then, while staying in Lisa s flat, wearing Lisa s clothes, and avoiding her own fiance, who has followed her over from the States, Caroline follows her instincts to confront what did happen in her sister s last minutes of life.