Ainsley (Kelsey Gunn) is a misanthrope who hates people but when she suddenly finds herself in isolation with no one to talk to, she realizes how much she actually misses connection. Enter Ulysses, a dead mouse in a jar. With a little bit of loneliness, a pinch of imagination, and a mouse-sized tuxedo, Ulysses becomes her training wheels in this newly discovered world of friendship “Little Jar”.