Real Iife husband and wife team Ajay and Kajol Devgan are known as seasoned actors, but their on-screen chemistry never really struck the right chord at the box office. But Devgan makes his directorial debut with a soul-stirring subject that is high in emotional quotient. But marriage is not a bed of roses and they are faced with a fair share of problems. Piya is diagnosed with Alzheimer’s. There are dramatic moments shown in flashback — which sustains interest and also leads to fragmentation — will they surmount this hurdle and become “hum” or will they drift apart?