<P> Evan finds out that his wife's sculpture has been vandalized by the girls . When Evan threatens to call the police, the girls reveal they are underage . Vivian (Colleen Camp), a friend of Karen's, stops by to see if Evan needs help . Seeing Genesis, Vivian angrily leaves . When Evan threatens to report a break - in, they give in and agree to be taken home . </P> <P> He then returns home, cleans the mess, and tries to go back to his work . Just as he is getting closer to completing his project, he hears a shattering noise . He finds a broken picture frame of his family and Genesis knocks him out with one of his wife's sculptures . Bel climbs onto him trying to arouse him while role - playing as a school girl in his daughter's school uniform . Evan initially refuses, but the girls threaten to FaceTime his wife with him unless he agrees with their methods . Bel rapes him, and Genesis records everything . However, Evan releases himself, knocking Bel off . He charges at Genesis, but is then disarmed by her and Bel who tie him up to a chair with an electrical cord . </P> <P> Louis arrives to collect the sculpture and finds Evan tied up to a chair, but before he can help him he hears the girls smashing the vandalized sculpture . He runs to stop them, but then has an asthma attack and realizes they took his inhaler . As he tries to get it back, he slips on a piece of the sculpture, hits his head while falling, and becomes unconscious . They turn Louis' body into a red sculpture and dig a makeshift grave in the backyard for Evan . They tie him up with a hose, then bury him in the hole, leaving only his head above ground . Genesis shows Evan the video she recorded earlier with his phone of him and Bel having sex . As Evan watches on, she uploads it to his Facebook profile . They depart and take Monkey with them, leaving Evan to his fate . Karen and the kids arrive home to the entire house ruined while speechless . </P> <P> In an alternate ending, Evan is seen getting out of a car parked outside a house . Inside the house Bel and Genesis are torturing their next victim . Evan knocks on the door and the girls stop when they hear it, he knocks again and they ask' Who's there?' . </P>

What kind of dog is in the movie knock knock