An undercurrent of cynicism and futility underlies the entire series. Racism has a strong undercurrent in Canadian society. It brought an unexpected cheerful melody to the heavy undercurrent. There is a strong undercurrent of romance which is not resolved. An undercurrent of violence, past and present, dominates the town. The song is an up-tempo pop track with a strong undercurrent of soul. The disturbances of 1848 gave hope to the nascent political undercurrent. Pyne detects an undercurrent of embarrassment within the discussion. There is also an undercurrent of traditional animistic beliefs especially in rural areas. The play, like life, has a strong sexual undercurrent. The rise of fascism is an ever-present undercurrent throughout the film. So they're has to be a comedic undercurrent to the story. In short, a strong undercurrent of superstition still remained in Portugal. What is less clear is the purpose of the play's undercurrent of homosexuality. Jack O'Brian felt there was an "undercurrent" of coercion going on.