After Many a Summer by Aldous Huxley

Jo Stoyte is afraid of death. But Stoyte is also a millionaire, and so he pours his riches into scientific research, desperate to find the secret of immortality. This ruthless quest will enmesh everyone around him in a web of greed, seduction, murder and debasement.

Written while he was living in California, this is Huxley's response to Hollywood's superficiality and obsession with youth, a powerful cautionary tale which employs all his customary wit and merciless insight.