Build a movie plot around this: What is the name of Cassandra's step mother? Topaz
A:
Cassandra Mortmain lives with her family in a tumbledown castle near the coast in England. Their father, James Mortmain, is a selfish, eccentric novelist. Their stepmother, Topaz, a nudist and artist, Rose, the oldest sister,is very beautiful. Their younger brother is somewhat odd and isolated from people hisage. Stephen Doyle, their ever faithful and gentle caretaker, has lived with the family for years, and has always been in love with Cassandra. In this array of fascinating characters, Cassandra struggles to find her place in theworld and, at the same time, be who she truly is. The entire story is told through Cassandra's diary and her wonderful but naive imagination and outlook on life.The Mortmains have squeaked by on residuals from James's one and only book. But, when a letter arrives with news that the book is out of print, they seem doomed to be evicted from the castle. When their landlords, two brothers from America, come to the castle on a rainy night after having car trouble, it seems that Lady Luck is on their side. Frustrated by her family's poverty and seeing an opportunity, Rose determines to catch Simon, the older brother, even though she does not love him. Cassandra helps her sister, hoping her sister will fall in love with Simon as well as have his wealth help their family from its dire straits. Neil, the younger brother, quickly sees through Rose's scheme and they take an almost instant dislike to each other. The arrival of Simon's family from London will throw the Mortmain family's unstable subsistence into a whirlwind of emotions, complex realities, secrets revealed, and affairs of the heart that they could never have dreamed of.Over time Cassandra falls in love with Simon. But her love is to be kept hidden because he is Rose's. Meanwhile, Cassandra has to deal with Stephen's unwanted attention. He is gorgeous and very caring of Cassandra and her family, and has been in unrequited love with Cassandra for many years. But their relationship is tarnished when Stephen tries to make love to...