Detective Conan

The Night the Zombie Died (19x17)

:

Kogoro, Ran, and Conan are invited to comedian Asako Fujimori's birthday party, even though Kogoro failed to find her stalker. When they arrive, they discover that Fujimori has stabbed a man in a zombie mask. They presume that the zombie is Fujimori's stalker, but discover that it is Jiro Imaoka, Fujimori's partner in her comedic career.