Lindy, formerly a super-hero called the Cat, is dead and now manifests as a ghost, assisting her sister, Miranda, who has taken on her mantle but without her powers which have been stolen. Various adventures against an assortment of super-villains ensue and Miranda has to overcome all sorts with the help of her ghostly sister. A second volume will follow as they have yet to bring Lindy's killer to justice.
A simple cartoon style which does not really work for me but the story is entertaining enough.