O livro é Quando a gravidade falha por George Alec Effinger. A protagonista é Marîd Audran e ele é um investigador do tipo.
A namorada de mudança de sexo se chama Yasmin:
I left Yasmin a note telling her to lock the door on her way out. Yasmin was one of the few people I trusted alone in my apartment. We always had a good time together, and I think we really cared about each other in some unspoken, fragile way. We were both afraid to push it, to test it, but we both knew it was there. I think it’s because Yasmin hadn’t been born a girl. Maybe spending half of your life one sex and half of your life the other does something to your perceptions. Of course, I knew lots of other sex-changes I couldn’t get along with at all.
As pílulas são de fato triângulos azuis:
I held the phone to my ear with one hand and reached for my pill case with the other. I fumbled it open and took out a couple of little blue triangles. They’d wake me up fast.
O módulo que leva Marîd a um frenesi é chamado de papai negro :
The black daddy was still torturing me, still burning like acid inside my head. All my screaming, all the infuriated, savage ferocity of my attack, did nothing to lessen my torment. I slashed and clawed and ripped at Hassan’s bloody body.
Much later, I woke up, heavily tranquilized, in the hospital. Eleven days had passed. I learned that I had mangled Hassan until he was no longer alive, and even then I did not stop. I had avenged Nikki and all the others, but I had made every crime of Hassan’s look like the gentlest of children’s games. I had bitten and torn Hassan’s body un til there was barely enough left to identify.