Things are chugging merrily along for librarian James Henry. He has a closet filled with new clothes, a trimmer waistline, and a closer bond with his father. His only real problem is that his girlfriend Lucy's interest in him seems to have inexplicably cooled. When schoolteacher Lindy suggests the club members join a Mexican cooking class, James jumps at the idea. Over cervezas and black bean dip, the supper club members warm to their new adventure. The class heats up even more when a reporter and her friends, twin sisters with supermodel physiques, enroll. But when people start turning up dead, and the evidence points toward Lindy, things become hotter than a jalapeño. James, who was looking to add a little more spice to his life, gets much more than he bargained for.