An apartment block janitor stumbles upon a deadly secret after one of the residents seemingly commits suicide and a mysterious new tenant arrives. An apartment block janitor stumbles upon a deadly secret after one of the residents seemingly commits suicide and a mysterious new tenant arrives. An apartment block janitor stumbles upon a deadly secret after one of the residents seemingly commits suicide and a mysterious new tenant arrives. An apartment block janitor stumbles upon a deadly secret after one of the residents seemingly commits suicide and a mysterious new tenant arrives.