One-hundred-and-three-year-old nursing home resident Ruth Brookes holds the key to an unsolved series of murders, and what she knows has never been more important. A psychotic killer is once again stalking gay men in the streets of Austin.

Meanwhile, Matt Bell has finally decided to break out of the social isolation he's lived in since being shot by the still-at-large killer, and meets the handsome, broody, and shy Thatcher. Both men are fighting their own demons as the killings start again. Soon the body count is rising and their friends are dropping like flies.

Will Ruth give up her secrets in time to stop the madman before Matt and Thatcher find themselves in the crosshairs of his rifle? Only Ruth knows for sure, because life is seldom black and white-more often it is just shades of blue.