Why is the model moving towards my screen everytime I move my mouse?

Ok so I got 2 parts that are grouped together and I managed to make them follow my mouse cursor, however whenever I move my mouse the model seems to be moving towards my screen every time I move my mouse and once it covers up my entire screen it goes back to land (or baseplate) and it would do this repeatedly. How do I prevent it from going to my screen?

Here is the script that makes the model follow my mouse cursor:

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local Part = game.Workspace.Model
local CurrentRot = 0

Mouse.Move:Connect(function()
    Part:SetPrimaryPartCFrame(CFrame.new(Mouse.Hit.p)*CFrame.Angles(0,math.rad(CurrentRot),0))
end)

Is there something wrong with the script or am I just missing something? Also I've tried making both of the part's CanCollide property to false.

Please help! Thanks!