While on a cruise, Ajay Mehra falls in love with Piya and soon marries her. However, their marital bliss is shattered when Piya is diagnosed with Alzheimer's disease.

Carol White, a Los Angeles housewife in the late 1980s, comes down with a debilitating illness with no clear diagnosis.

In a city in South America an outbreak of bubonic plague occurs. While people try to flee and the military close the city, an idealistic doctor decides to stay and help the sick. In the ever-changing circumstances, he puts up a brave fight, being helped by others but also involving them without being able to control the situation.

As an epidemic of a lethal airborne virus - that kills within days - rapidly grows, the worldwide medical community races to find a cure and control the panic that spreads faster than the virus itself.

When teacher Simon arrives in a small, secluded village to take over the local school, he is surprised to discover that his predecessor has disappeared without a trace - and that nobody seems too concerned about it. As Simon probes deeper into the disappearance, the inhabitants of a forbidding estate called "Summerfield" take on more a...