Vertrou Niemand (2020)

Due to the nation-wide lockdown in 2020 caused by COVID-19, an understaffed detective reaches out to a retired police captain to help him solve the murder of two actresses that happened just before lockdown was commenced. With more than ten suspects the captain interviews the cast and crew via video-call, slowly unfolding the truth. Things quickly get out of hand when another murder happens. Stuck at home with nothing but his laptop, the captain thoroughly interrogates the suspects to try and stop the killing spree.