When unhappily married Anthony starts an indulgent affair with John Lennon fan, Yvonne - an attractive young girl half his age - he opens a libidinous can of worms.
His ruthless wife, Rachel, embarks on a relationship of her own with a man she has met briefly at a reception - a tormented lush named Harrington.
When Yvonne's obsessional older brother, the muscular, menacing, Hugo steps in he causes havoc by diving into an affair of his own with the love-lorn Harrington.
A mad roller-coaster of sexual permutations erupts as each character seeks solace from the fervent demands of their own psyche.
But, for all the wild sexual busyness, it is sex without savour, for here, relationships are reduced to confession as a substitute for sensuality.
Each lover now entangled in a frantic emotional jigsaw where the pieces refuse to fit.
Set in the year following John Lennon's murder, with the sexual mores of the Swinging 60's still intact, the story moves from the land of the Beatles, Liverpool, to London, to New York in a Rock 'n' Roll of sexual experimentation in a Rock 'n' Roll spoof of the Iris Murdoch genre.