Men Are Trouble — James Patrick Kelly

Where did all the men go? When aliens make all men disappear from Earth, the women left behind struggle to rebuild the shattered human culture. Years later, private investigator Fay Hardaway is hired by a grieving mother to investigate the mysterious suicide of her daughter. The aliens take an interest in the case as well, as does a religious cult bent on breaking the aliens' stranglehold on Earth. Raymond Chandler meets Philip K. Dick in this Nebula Award finalist.