Tragedy strikes a married couple vacationing in the Moroccan desert, which jumpstarts an interlocking story involving four different families.

Paul Rivers, an ailing mathematician lovelessly married to an English émigré; Christina Peck, an upper-middle-class suburban housewife and mother of two girls; and Jack Jordan, a born-again ex-con, are brought…

A fatalistic car crash in Mexico city sets off a chain of events in the lives of three people: a supermodel, a young man wanting to run off with his…