Harmony

In an utopian, futuristic world, where humanity has acquired eternal life, a young high ranked agent of the world's leading health company investigates a wave of suicides.

Harmony is a 2015 thriller animation movie, starring Yoshiko Sakakibara, Miyuki Sawashiro, Aya Suzaki. It holds an IMDb rating of 6.1/10 from 1,138 votes and runs 1h 59m.