Here's the first full trailer for Will Ferrell and Kristen Wiig's Lifetime movie

Last week's 20-second teaser for Will Farrell and Kristen Wiig's Lifetime movie gave a taste of what to expect, but still had us wondering just how serious the movie would be.

The one-minute video gives us a deeper look into the family that welcomes a young pregnant girl, played by "90210's" Jessica Lowndes, into their home with the intention of adopting her baby.

But, Ferrell's character just can't seem to avoid noticing her, um, curves as the beautiful house guest as she suns herself in the yard. And, he can't escape her sitting uncomfortably too too close to him on a bench. This, of course, is by design.

Their house guest wants their lush, suburban life and she'll got to great lengths to get it.

How serious are Will Farrell and Kristen Wiig about this Lifetime movie? Deadly serious.

Did we mention it's based on a true story, according to Lifetime?

"Deadly Adoption" airs this Saturday, June 20 at 8 p.m.

Watch the new trailer below: