Geneva

Sarah Collier, a Nobel Prize-winning scientist, is noticing frightening changes in her own mind that mirror what her father suffered from Alzheimer's: forgotten moments and even blackouts. When she is asked to headline a high-profile gathering of biotechnology experts, she is hesitant. Her husband Daniel, a neuroscientist himself, argues that the attention will be worth the risk.

The conference is built around a breakthrough that could transform medicine and, for Sarah, might mean survival. In Geneva the couple are treated like celebrities, though the spotlight falls mostly on her. Beneath the five-star luxury surrounding them, financial backers are closing in, the outspoken blogger Terri Landau has made their story her focus, and Sarah's condition keeps getting worse.

As matters slip further beyond anyone's control, Sarah must decide whom she can rely on, and she cannot even be certain of her own judgment.