https://www2.zoechip.com/movie/groundhog-day-19013

My favorite Harold Ramis film and also Bill Murray's best comedic performance. Underneath its hilariousness there is un unmistakable Zen message. Enjoy... - JW

A weather man is reluctantly sent to cover a story about a weather forecasting "rat" (as he calls it). This is his fourth year on the story, and he makes no effort to hide his frustration. On awaking the 'following' day he discovers that it's Groundhog Day again, and again, and again. First he uses this to his advantage, then comes the realisation that he is doomed to spend the rest of eternity in the same place, seeing the same people do the same thing EVERY day

From IMDB:

A perfect blend of comedy, clever plotting, and character study
Even the funniest movies eventually stop making me laugh after I've watched them enough times that the humor no longer surprises me. A joke never has the same effect when you know the punch line in advance. But every once in a blue moon, a comedy comes along that is so thoughtful and meaningful in addition to being funny that after seeing it a dozen times and laughing less often, I start noticing its depth and insight. For me, no movie has so perfectly united hilarity with profundity as "Groundhog Day," which happens to be my favorite movie of all time.

Superficially, this film belongs roughly in the same genre as "All of Me" and "Liar Liar," comedies in which a character becomes the victim of some weird supernatural fate and must adapt to the insane logic of the situation. But Steve Martin and Jim Carrey are geniuses of physical comedy, whereas Bill Murray specializes in understatement. I can't imagine any other approach having worked for this film, where the world is going crazy around Phil the weatherman, Murray's hard-edged character who keeps his emotions bottled up. What makes the initial scenes in which he first discovers his fate so hilarious is the mounting panic in his demeanor even as he tries to act like everything's normal. All he can think of to say is, "I may be having a problem." Uh, no kidding. Throughout the rest of the film, he'll deliver similarly muted lines to describe his situation, like "My years are not advancing as fast as you might think." It's striking that a man who has all the time in the world would choose his words so carefully, but it reflects a well-conceived screenplay.

In this comedy, the laughs are reinforced by repetition. The absurdity of Phil discovering that he's repeating the same day is funny enough, but every time that alarm clock goes off, and the radio starts playing, "I Got You Babe," and Phil goes through the same motions and meets the same people and then goes out into the street to be accosted by the same annoying high school buddy ("Phiiiil?" ), I laugh again because I'm reminded how funny it was the first time around. People who didn't like this film (I've met one or two) emphasize how annoying it is that everything gets repeated. I sort of understand that complaint, since jokes repeated over and over usually fail miserably. "Groundhog Day," however, works uniquely well because the situation gets increasingly absurd and Phil gets increasingly desperate with each day that fails to pass.

The film would have fizzled out quickly had it spent the entire hour-and-a-half showing Phil meeting the same people and doing the same things time and again. The fact that "Groundhog Day" avoids this fate is one of its more striking qualities, since most high-concept comedies of this sort fall apart in the third act. "Groundhog Day" is a rare example of one that completely follows through with its premise, leading from the initial situation logically to the ending. Only the Jeopardy scene feels like a skit that could have appeared anywhere. But this scene actually is placed wisely: it occurs when Phil is becoming increasingly bored and lethargic, and it is used to separate two hilarious scenes where he gives nutty television reports.

It is in the middle, centering on Phil's attempts to seduce Rita, when the film reveals itself to be more than just a comedy. The underlying implication of these scenes is that Phil's powers are less important than he thinks they are.