A federal marshal newly stationed at a mining colony on the Jupiter moon of Io notices a series of unusual deaths. Against the advice of everyone, he digs deeper to find the cause, and finds himself marked for death. ...

A police inspector, suspecting an attorney of two child sex murders, has him held for a questioning session that goes on for hours. ...

After spending years in prison, a top safe-cracker owns a couple of businesses, which are fronts for diamond heists. After his trusted fence is killed, he agrees to work with a powerful mobster, but to dire consequences. ...