Perfect Lie

He screamed in despair, furious about the small clause in Müller's will (marriage) that had halted what was already destined. After waiting two years to determine who would inherit everything, Adal Müller found himself desperately searching for the perfect candidate who could help him achieve his goal of "completely obtaining the inheritance."
In a fit of desperation, he asked his secretary to marry him, assuring her that it would be temporary. However, she refused, confessing that she planned to marry her boyfriend and was not interested in his lucrative proposal. Yet, all was not lost. She had a brilliant idea: introducing him to a friend who might be willing to accept his proposal in exchange for money.
Who is this friend? Who is Gisela Fischer? Would she agree to marry the great magnate Adal Müller?
The secretary continued to reassure him, promising that her friend would accept, and both would win; one would gain the entire inheritance, and the other would receive the extra money she needed.