TiMER (2009) on Netflix

In a near future, many people wear a timer implanted in their wrists by matchmakers to find their soul mates and true love. The twenty-nine year-old orthodontist Oona O'Leary is worried about her future since she cannot find her true love. When she meets the twenty- two year old supermarket cashier and musician Mikey Evers, his timer shows that they will be together in four months and she falls for him. Oona lives with her stepsister and best friend Steph Depaul that works as receptionist in a nursing home. When Steph meets the widow Dan that does not wear a timer, they start seeing each other. Meanwhile Oona finds that Mikey's timer is fake and she is affected by her discovery. The birthday of Oona and Steph is on the same day and their mother Marion Depaul invites Mikey and Dan to the party. On the eve, Oona and Steph decide to remove the timer, but when Oona is ready to take it of, the timer is activated by someone who has just implanted it. Who could be her soul mate?