/usr/lib/x86_64-linux-gnu/libbluedevil.so is in libbluedevil-dev 2.0~rc1really1.9.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libbluedevil.so.1
/usr/lib/x86_64-linux-gnu/libbluedevil.so.1