Welcome to Our Funeral tells the story of a couple who find themselves in unthinkable events on their engagement day. Irem and Ozan are a couple who have been together for 4 years. Deciding to get married, Irem and Ozan start preparations for the first step. When the morning of the engagement comes, the couple wakes up in the house where they live together. Irem is very nervous about the engagement because it will be the first time their families will come together and every member of Irem's family is likely to cause trouble. On the other hand, Ozan's family is a well-educated aristocratic family. On the day of the engagement, İrem's mother will be released from the Mental and Nervous Diseases Hospital, and among those attending the engagement are her fraudulent aunt, her crazy aunt from the Netherlands, her aunt who longs to be a singer, and her great-aunt who is delirious about her dead husband. However, events erupt from an unexpected place. İrem's great-grandmother Atike dies on the day of the engagement. When Atike's body is brought home in a refrigerator by the municipality, events take a complicated turn. Soon the family's secrets begin to spill out.