Silent Night (2021) review

Assorted friends and relatives (including Lucy Punch, Rufus Jones, Lily-Rose Depp, Annabelle Wallis, etc.) spend their Christmas holiday at the home of Nell (Keira Knightley) and Simon (Matthew Goode) and their three children, but things get tense when their son Art (Roman Griffin Davis) starts talking about a "gas attack" from Russia and suicide pills (he forgot he needed to keep calm and carry on).  What starts as an annoyingly "quirky" family picture becomes a morbid drama that's completely tone deaf considering the time we're living in (it's December 2021, and a new variant of COVID-19 named "Omicron" is running amok), plus Art's refusal to take the pill ends it on a note that could best he read as "anti-vax."  What's next, a "black comedy" about Jonestown?  Can we convince Will Ferrell to play a demented faith healer?