Parker Pyne Investigates

Are you happy? If not consult Mr Parker Pyne...
The advertisement appears in The Times every morning. Some readers ignore it. Some chuckle, and read on. And just a few make their way to Mr Parker Pyne's modest office, including:
The Middle-aged Wife
The Unappreciated Husband
The Discontented Soldier
The Beautiful Jewel Thief
The Bored Sahib...
and seven more unhappy people, bringing with them baffling and intriguing cases for the world's most unusual detective.