Martin never planned to do any actual detecting. He just wanted a quiet life. Something his mother was not going to allow.

There again he never for one moment imagined he would have to look into the death of a 90-year-old lady who was gambling away her family fortune.

Martin agrees to help an old school friend who has found himself on the wrong side of the law.
Before long Martin is reluctantly mixing with drug dealers, loan sharks, ageing criminals plus an unbearable little girl, all of whom he considers to be UPS (unpleasant people sorts).

It began when Martin agreed a simple favour to help Ernie's brother. Things started to go wrong when Ernie's brother was allegedly a part-time industrial spy who spent his days preparing for an alien invasion. Martin thought it all unbelievable, Susan just jumped at the chance to save the world. 

While attending a wedding with Martin, Susan reunited a lost dog with its owner. The trouble was in doing so they discovered a burnt-out house; the conflagration allegedly having been started by a church. Susan decided there was a blatant injustice that she was going to rectify.