'Hotel Mumbai' is based on the true story of the devastating terrorist attack on the Taj Mahal Palace Hotel in 2008. The terrifying assault brings together the guests and the staff of the luxurious hotel, including the wealthy new parents David and Zahra (Armie Hammer and Nazanin Boniadi), Russian businessman Vasili (Jason Isaacs) and newly-promoted waiter Arjun (Dev Patel) in a desperate fight for survival.