In Canada, at a night-time garden party, a group of young adults are busy chatting each other up; Dylan and Molly seem unable to get over their break-up, Carly has Dylan in her sights, Molly is seducing Noel to rouse his ex’s jealousy; as for Michelle, she is speaking to Charlie about their one-night fling… Already interspersed by individual daytime interviews, where each envisages his or her near future, this chronicle of an ordinary party is suddenly analysed, manipulated, tabulated: a group of young French statisticians note the attractions, signs of seduction, and anticipate the probability that couples will form.