In the course of one fateful day, the lives of a drug kingpin, an obsessed cop, a small time dealer and a cunning call girl converge with deadly consequences.

An online stalker torments a young woman.

An underwater cave diving team experiences a life-threatening crisis during an expedition to the unexplored and least accessible cave system in the world.

Grady suffers from multiple personality disorder. Lara doesn't know she just angered the most dangerous one.