Madison has adored her brother's best friend since they were young. Everyone thinks that she and Chase would be the perfect couple, but there are two problems: Chase has given up on relationships after witnessing how his father's infidelities destroyed his mother and, after sleeping together four years ago, Madison and Chase fight constantly. They come to a truce for her brother's wedding, in which Chase is the best man. Due to a confusion in the hotel reservation, Chase and Madison are forced to share a horrid suite from the 1970s and survive a series of mishaps. Madison will do anything not to mess up her brother's special day, including giving into temptation. Meanwhile, her family will try to convince her that the spark between them can be used for something other than arguing...