An unemployed man decides to take his shot at becoming a thief. He chooses to break into the house of a young female office worker while she is at work. However, many unexpected incidents occur when unlocking the door. 

2號二樓劇情大綱一名失業男子決定放手一搏當起小偷，他挑中了一個上班族女性的住所，決定趁她上班的時候開鎖行竊。不料在開鎖的過程中，卻發生許多意想不到的插曲。樓上鄰居、隔壁訪客等，這些再平常不過的事情如今都成為他的阻礙。他一邊要小心不被識破身分，一方面又要想辦法打開這扇門。最後他到底能否打開這扇門，而門後又有什麼奇妙的遭遇在等著他？