Lifetime Movie 'The House Sitter' Premieres Tonight, Stars Kate Ashfield, Shelby Young, Ashley Dulaney, Sean O'Bryan

The House Sitter premieres December 27 on Lifetime.

Lifetime movie The House Sitter premieres Saturday, December 27 at 9 p.m. ET/PT. The film stars Kate Ashfield, Shelby Young, Ashley Dulaney and Sean O'Bryan.

A family cuts their vacation early so they invite their house sitter to stay until her next job, only to discover the deadly lengths she'll go to become a part of the family.

Watch a sneak peek below: