‘Disconnect’ an earnest cautionary tale

That’s not to say “Disconnect” is without powerful scenes, and a thread about the heedless consequences of cyber pranks among kids on social network sites probably stands to reach more adolescents than non-fiction treatments of bullying.

Nina (Andrea Riseborough) is a TV news reporter investigating porn chat sites that recruit underage teens, many of them runaways. She establishes a connection online with Kyle (Max Thieriot), at first in private chats and then cam-to-cam. They eventually meet and she convinces him to participate in an exposi, promising to keep his identity concealed. But when the story is picked up by CNN, representing a huge professional coup for ambitious Nina, it lands on the FBI’s radar, placing her under pressure to betray her source.

The network’s legal counsel is Rich Boyd (Jason Bateman), who has more urgent issues with his troubled 15-year-old son Ben (Jonah Bobo). An aspiring musician and friendless high school loner, Ben is targeted for humiliation by skater buddies Jason (Colin Ford) and Frye (Aviad Bernstein), who invent a female handle and begin messaging him. They start by admiring his music and then take it sexual, sending a naked photo and requesting that he do the same.

Jason’s father Mike (Frank Grillo) is a widowed former cop from the computer crimes unit, now working as a private investigator. Victims of credit card fraud, ex-Marine Derek (Alexander Skarsgard) and his wife Cindy (Paula Patton) hire Mike when the police prove unhelpful and the couple’s savings and assets are taken. Retracing Cindy’s participation in an online grief support group following the death of their baby, Mike believes he has found the identity thief. But obtaining concrete evidence proves too slow for Derek, who confronts the suspect (Michael Nyqvist).

The ways in which technology has polluted communication for these people are laid out with exacting thoroughness in Stern’s script. Rich is constantly consumed by work calls and emails at home; Ben is so plugged into a headset or a laptop that he rarely speaks; Cindy shares secrets about her marriage with a screen moniker.

The thematic points are made clearly, with well-sustained tension and no shortage of dramatic impact. It’s just that it’s all a bit obvious, becoming self-consciously operatic when Rubin crosscuts among the slow-mo violence that brings each story to its climax. And the ensuing moral lessons and re-established human connections are a bit too neat and tidy.

There are compelling performances to bolster the material, however, including from some of the young cast members.

Thieriot ably straddles the lines within Kyle. Like his flirty online persona, appearing in just underwear and tattoos, he has learned to use sex and cockiness to get by, but shows vulnerability when he starts to believe there might be another way forward in life. Ford’s Jason early on reveals flickers of a conscience to distinguish him from more callous Frye. Looking like a young Paul Dano, Bobo makes Ben a heartrendingly fragile outsider, and as the popular sister who beats herself up about ignoring his pain, Haley Ramm has affecting moments.

Standout among the bigger names is Bateman, whose obsessive determination to find the trigger for Ben’s desperation drives the developments of that strand. Hope Davis is given too little to do as Rich’s wife, concerned only about her son’s health and not with assigning guilt.

Riseborough is stuck with a character that becomes less credible as her interaction with Kyle continues after the news report. But Grillo is a strong presence, and Skarsgard, considerably drabbed down from his “True Blood” look, conveys the simmering anger of an Iraqi vet reduced to being a thankless paper-pusher. He and Patton effectively draw the lines that isolate them in their grief and then the slow thaw as they face a fresh crisis together.

In a curious bit of casting, fashion designer Marc Jacobs registers convincingly in his couple of scenes as Harvey, the sleazy surrogate parent of the sex-cam models, luring them off the street with the promise of shelter and income.

While the city locations are somewhat anonymously anyplace, cinematographer Ken Seng gives the film a suitably cold, almost grim look, echoed in Max Richter’s mainly electronic score. Extreme closeups and onscreen text exchanges are used skillfully to engage us in the cyber dialogue, and editors Lee Percy and Kevin Tent fluidly keep each of the stories in equal play.

“Disconnect,” an LD Entertainment release, is rated R for sexual content, some graphic nudity, language, violence and drug use — some involving teens. Running time: 116 minutes.