He does n't want Timo and Leonie to know but includes his good friend Charlie and ex-wife Elisabeth into what 's been happening with him .
Arno is diagnosed with Alzheimer 's disease .
Arno does n't want Timo and Leonie to know but includes Arno 's good friend Charlie and ex-wife Elisabeth into what 's been happening with him .
Arno is diagnosed with Alzheimer 's disease .