From The Perry Mason TV Show Book
Mitsou Kamuri has been seeing a great deal of Grove Nichols, son of wealthy businessman Hudson Nichols. But Hudson doesn’t approve of his son's relationship. When the girl is “caught” with a string of valuable pearls belonging to Hudson’s wife, the businessman agrees to drop all charges against her if stops seeing his son.
Perry gets involved and later the girl is charged with the murder of her uncle, who had originally strung the pearls. The uncle's death is made to look like a ceremonial suicide (as in hara-kiri) but the police know better.