What would you do if the sun set... Forever?
Lexi finds herself a prisoner in her own home after the sun sets and refuses to rise again. At first, it was an inconvenience; now it's downright dangerous. In the four weeks since the darkness descended, humanity has all but given up. Violent crime has become part of everyday life and everyone is a potential killer. No-one can be trusted.
But, that's not all Lexi has to worry about. The darkness has brought something with it.