This is one of James Mills' Manhattan doomsday stories programmed toward that lethal phut based on the remark physicist Theodore Taylor made in the John McPhee book--""a homemade nuclear bomb is not an impossibility, not even particularly difficult."" So it seems after black Bobby Francis French, who makes it on all white levels, recruits a classmate at Princeton as his ""nuclear Julia Child."" Aizy, according to one of her therapists, has a ""personality that engineered defeat"" so she's only too glad to prove the shrink wrong as she reduces nitrate solution to plutonium and makes a bomb which click, click, clicks just right. The police, however, are anything but idle and it's a great guy, Ransom, who goes in to reason with Aizy after French is unwisely shot down and Rawson puts her away. Mills as always tells a documentary story which never cools to room temperature and singes the fingers that turn the pages, fast.