Hello! I am in search of a horror movie which I saw in 2007-2012 or thereabouts. The film was broadcast on Viasat, I think, in Europe and if I am not wrong it was its first premiere on TV. The plot of the movie involved a group of people who got an invitation to come to an address and once they get there they find themselves in basement type premises. Among the people there is one rough looking person who does not talk at all and others wonder what is wrong with him/her. Suddenly the lights go out and one of the people disappears. The remaining people wonder what happened and try to figure out where they are etc. Then the lights go out again and one more person disappears. Now they start having suspicions that something sinister is going on and plan to capture the person/thing taking the people when the lights go out next. At the end there is just one person left and the movie ends in a group of new people arriving in the basement one year later and the last survivor from the previous year is still in the basement…
Help me, I want to see this movie again but I have no idea what its name is. I have tried to google the plot but have come up with nothing so far…