Alone is another 'Flopbuster' after Monster and Araattu from Mohanlal. Mohanlal delivers the same cliché dialogues and acts and a good thing, he wasn't an undercover agent. I don't understand why he is signing up for films like this.
On the technical side, cinematography and editing are a reminder of the marriage video shoot and edit. There is no professional/film-level VFX/chroma cutting, and seeing the sky makes it seem like the apartment is hanging in midair. Lalsir, sign up for good movies.
There are many people watching international films through OTTs, so I feel sorry for those who comment it's a thriller.