My Boyfriend is an Angel, Christmas comedy, English subtitles

What do people usually do when they fall out of a window? They scream loudly. Further on the circumstances. Who cares. The heroine of the film, Sasha Nikolaeva, was probably luckier than the rest. She fell right into the arms of...an Angel. The most ordinary, in a coat, like an ordinary young man. However, as a modern, moderately cynical girl, Sasha, a student of the Faculty of Geology of Moscow State University, believes with great difficulty that this is even possible.
Seraphim, that's the name of the alien, has to make a lot of efforts to prove to Sasha that Angels exist. But he did not take into account one thing - if a woman believes you, she will most likely fall in love with you. Is it possible to fall in love with an Angel?