Great actors, interesting topic, interesting plot and then somehow disappointing

Actually, everything was OK!
- Excellent actors who take their role seriously
- Interesting topic (is becoming increasingly important, not least because of the increasing life expectancy)
- Interesting plot (potential for conflict and tragedy "en mass")
And then somehow disappointing.
The film was not really bad.
The narrative style of the time jumps might have something to verkomplizierend, in my opinion, to a chronological narrative here would have been better, but this is perhaps a matter of taste.
I can not even really say what I did not like or what I've missed.
One should perhaps get an idea itself, worth seeing the film is all, but one must not have seen him.