Seamus O'Reilly can talk and he has plenty to say. To the adorable feline and notorious male chauvinist Reilly, the world is a fascinating place and he is the most fascinating part of it.

Reilly manages to ingratiate himself with many of the people around him, providing he leaves his claws retracted. However Reilly, who is filled with feline attitude, is more than content to make enemies of most cats-except his demure girlfriend. Katie O'Brien, who is prone to becoming stuck on neighbours' rooftops, must rely on subtle methods to overcome Reilly's pushy ways and win him over. Caught in the middle of the big pussycat's capers is Reilly's owner who already knows there is no one the ornery feline is more protective of than her.

In this semi-fictional story accompanied by illustrations and poetry, Reilly the cat continues with his carefree adventures, entertaining antics, and witty repartee with his girlfriend and his owner.