It's a TV rule: Lifetime movies are at their best when they feature crazy homicidal types. By 'best' I mean 'most fun'; quality is secondary.
Although "Tallhotblonde" (8 tonight, Lifetime), qualitatively speaking, isn't low rent or anything. But the highlight is the potent creepy/sad/crazy mix that makes it a good, albeit predictable, Saturday night pick.
Based on a true story, the movie follows the adventures of Thomas Montgomery (Garret Dillahunt), a meek and mild-mannered middle-age working class guy and former Marine, married to Carol (Laura San Giacomo) and father of two daughters. Thomas grinds out a routine life; it's not horrid, just mind-numbingly ordinary. Indeed, Thomas' only pleasure is a monthly poker game with work buddies, including much younger Lothario Brian (Brando Eaton).