“Jodi Arias: Dirty Little Secret” 8 p.m. Saturday, Lifetime

Are you suffering from withdrawal now that HLN has reduced its saturation coverage of the Jodi Arias murder case and turned its focus instead on the George Zimmerman trial? The Lifetime channel feels your pain and rides to the rescue with “Jodi Arias: Dirty Little Secret,” premiering Saturday.

It would be very easy to get all puffed up and indignant about the film’s low quality, the script’s unintentional howlers and the unseemliness of rushing the Arias film onto the small screen only weeks after Arias was found guilty of killing lover Travis Alexander in 2008. The jury was solidly convinced she intentionally stabbed him 27 times and fired a bullet into his head.

Arias claimed self-defense.

But the Arias film is what Lifetime does, and it does it fairly well.

Nancy Grace might know better than I about the accuracy of “Dirty Little Secret,” but just looking at it without the benefit of HLN addiction, the film doesn’t always make sense. Yes, Arias (Tania Raymonde, “Lost”), comes off as a narcissistic, sexually manipulative psycho, but because we never get a convincing take on Alexander (Jesse Lee Soffer, “The Mob Doctor”), the film is confusing.

Arias and Alexander meet when he’s giving a motivational talk. She’s so taken with him, she follows him into the men’s room. It takes a while for their relationship to get physical, in part because Alexander is a practicing Mormon and tries to adhere to the teachings of his church. Alexander’s friends are wary of Arias, which is why she does everything she can to keep his old friends away.

Alexander at first seems to kick some of his religious beliefs to the curb too quickly for credibility, but we can almost accept the power of lust in this case. What we can’t accept in the film is why, after realizing Arias is a psycho stalker, he gives in to lust a second time? In real life, we know it happened, but the film’s script doesn’t make us believe it at all. The screenwriters and director Jace Alexander are wise to focus almost exclusively on the relationship and only briefly on the Arias trial.

The jury may have found her guilty of killing Alexander, but deadlocked on what her punishment should be. That means there will be a whole new trial on the penalty phase of the case alone, and you can bet Nancy Grace is already sharpening her nails and whitening her teeth.