Only read the Megan Abbott story, but that's all I wanted it for. A doctor is arrested for prescribing illegal and undisclosed drugs to his patients, after it all goes tragically wrong; his (remaining) patients are on his side. Not really about speed per se, I think, but that's not the point. The doctor is kindly and unreliable; the slippage between normal unreliable perception and drug-induced unreliability is well-done. Reminds me a lot of Elizabeth Hand. Not bad, but not one of my favorites.