"Heart of Wilderness" is a frustrating film. This is because the acting and direction are all very nice. But the story itself has issues-- such as characters you don't really care about as well as an ending that doesn't seem to feel very complete.
The film is about a low-life who steals money from other low-lifes. His wife doesn't realize this nor does she know that when they go on a seemingly ill-planned canoing trip (it's still freezing outside there in northern Minnesota). His plan is to take the canoe into the middle of the wilderness and disappear--otherwise bad people will eventually come looking for him.
As I said above, the characters aren't particularly likable. The main character isn't just a thief but he's cranky throughout the film-- too cranky and you have no idea WHY the woman sticks with him. I talked to others who saw the film and they, too, thought this made it tough to feel engaged with the movie.