The Time of Your Life

It is early 1970s. The story centres round twin sisters (Mathilde and Belle) on the verge of their 71st birthday when they are due to come into a substantial inheritance from their father. He had neglected to check his will which stated that they would inherit at this age rather than the more usual 21st. Their older brother, Bertie, went to Australia 40 years  ago and as they have never heard from him have assumed he is dead. However, he suddenly arrives and announces that the entire inheritance is his. The sisters consult their solicitor who says nothing can be done so they decide they will have to bump him off with the help of their friend Kelly. Later they discover Bertie is illegitimate and cannot inherit.  A disappointed Bertie prepares to return home when a telegram arrives telling him they've found gold on the land he farms. Other characters achieve a happy ending in their lives and all ends well with the sisters taking their great-niece on a world tour.