The film "Another Happy Day" focuses on Joanna, a new mother who struggles with the challenges of motherhood. She describes herself as not really a mom but someone who just has a baby. Joanna, an artist, finds herself unable to create art and feels inadequate in caring for her newborn. She faces difficulties in returning to her old job, feels isolated from her friends, and even her husband believes he is better at mothering than she is. Sleep-deprived and feeling disconnected from her baby, Joanna seeks companionship and unexpectedly forms a bond with a distant aunt-in-law she never knew.