404 Error – Page exists! wp-content/plugins…

Hi guys,

My directory structure is as follows
/public_html/wp-content/plugins/plugin-name/file.php

However when I try to directly access this file, I get a 404 error.

http://mysite.com/wp-content/plugins/plugin-name/file.php

I have permalinks working fine. Here is my .htaccess

# Use PHP5 Single php.ini as default
AddHandler application/x-httpd-php5s .php

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

Note: I can successfully get to /wp-content/ but not /wp-content/plugins (Page Not Found) … I can also successfully get to /wp-content/plugins/plugin-name/ but not /wp-content/plugins/plugin-name/file.php