Over a period of a few days and with the "co-conspiratorial help" from the grocery store manager, as a couple they enjoy several activities leading up to Christmas, including things like a carriage ride, a shopping spree, attending a musical performance together, and a party.

As the story progresses, we begin to understand that Mary knows a lot more and is much more concerned about making Robert happy day-by-day than might be otherwise expected for a senior couple, including moments of quiet intimacy.

As the film draws to a close, we find out that Alex, Mike, Mary, and even the "alleged" boyfriend are all part of the story, as it is Robert's condition of Alzheimer's / senile dementia taking him away from them for days at a time, leading to a very sweet ending.

[4] Jennie Punter of The Globe and Mail wrote, "There are moments during Lovely, Still when it feels like you're trapped with Martin Landau and Ellen Burstyn in a kitschy musical Christmas snowglobe that someone keeps shaking", but "Landau and Burstyn deliver beautiful, nuanced performances, creating a real and captivating onscreen chemistry.

It’s a testament to their talent that you find yourself slowly drawn into the bubble (make that snowglobe) of Robert and Mary’s budding romance, as the music swells, the snowflakes flutter down and Christmas Day draws nearer.