According to Soviet records , 'Roy Courtnay ' died while tracking a former Nazi in the film The Good Liar .
During a holiday in Berlin , the plan appears threatened when Betty 's grandson Steven reveals that 'Roy Courtnay ' died in 1948 while tracking a former Nazi , but Roy explains that he is actually Hans Taub , the German translator who accompanied Roy on the arrest that led to Roy 's death , simply explaining that he took Roy 's identity so that he could get out of Germany and reinvent himself .
The Good Liar