On a blistering Chicago afternoon, the Cubs are winning and Abe Lieberman is waiting to meet a prostitute. This mild-mannered old police detective still has a few tricks up his sleeves—and one of them is named Estralda Valdez. One of the city’s loveliest women of the night, she is Lieberman’s most prized confidential informant, and she needs help with a psychotic john. Though they suspect she’s only paranoid, Lieberman and his partner, Bill Hanrahan, agree to watch Valdez’s back. But Hanrahan’s weakness for drinking will sabotage their plans.

Hanrahan gets soused watching Valdez’s front door, and by the time he realizes she is in danger, it’s already too late. To save the partnership and find the hooker’s killer, Lieberman and Hanrahan will have to make a journey into the darkest heart of the Windy City.

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