When a neighbor on their floor is murdered, married couple Nick and Lana host cocktail parties in their apartment in an attempt to discover which of their neighbors pulled the trigger.When a neighbor on their floor is murdered, married couple Nick and Lana host cocktail parties in their apartment in an attempt to discover which of their neighbors pulled the trigger.When a neighbor on their floor is murdered, married couple Nick and Lana host cocktail parties in their apartment in an attempt to discover which of their neighbors pulled the trigger.