/usr/lib/dictd/README.Plugins.gz is in dictd 1.12.1+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/dictd/../../share/doc/dictd/README.Plugins.gz
/usr/lib/dictd/../../share/doc/dictd/README.Plugins.gz