THE FAMILY UNIT AND OTHER FANTASIES is a superb collection of darkly comic, largely fantastical stories set in our jittery, polarized, increasingly impersonal age. Whether it's the tale of a corporation that buys a man's family . . . two mysterious survivors of a superstorm who are given shelter by a gullible couple . . . an erotic adventure set during an urban terrorist alert . . . or the entire life of a determined and heedless mouse set against a pitiless universe . . . these stories are by turn funny and frightening, uncanny and unnerving.