The Danasi are a wealthy Italian family that has been at the height of power and success for many generations. Ever since his father lost the "Butterfly", a very precious family jewel, to gambling, everything starts to go wrong. Business is no longer going very well and relations between the members of the family that once was united and lived in harmony have deteriorated a lot. In fact, the precious jewel not only has a great value but is also a symbol of the success and fortune of the powerful family. This pushes one of the daughters to an extreme attempt to recover the precious amulet at any cost and to this sxopo she turns to a private investigator ...