Here’s the code I used to fix almost the same problem (dropdown page was calling the div “em-wrapper”):
remove_filter('the_content', 'em_content');
//your code here, which should get the content you want
//probably something like $content = etc. and echo $content
add_filter('the_content', 'em_content');
I found the culprit code in the unaltered Events Manager em-events.php lines 163-185.