Black party

An officer receives a message on his phone from an unknown person, at the site of a crime that occurred near him. As soon as he goes to the site, he finds six men standing around a body in a suspicious condition, and before he informs the department of the incident, he receives another message from the same source asking him and those with him to stay in the house for a while. Only two hours and they are preparing for the black party ceremony..Do you think these men are accused or is someone manipulating them?Will the officer succeed in solving the mystery or does the party have a different opinion...?The last question is for you: Are you willing to be one of the invitees to this party?