Help me find a movie!

i remember a couple of details. some kind of party, teenagers or young adults having fun. suddenly, some of them got locked in a bunker or something below the building where party was taking place. there were zombies or mutants idk. also I remember that one of creatures bit off man’s ear. I saw this movie as a kid and hope someone can help me find it!

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I am not sure about the party part, but maybe?:
“Underground” (2011)

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Again, I am not sure about the party, but maybe?:
“The Divide” (2011)

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“Night of the Comet” (1984)?

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“Radioactive Dreams” (1984)?

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